Youxuan Software is based in Beijing, connecting all localities and creating a global layout in the era of digital economy.

2024年3月6日 | admin | aljs

　 　 　 　ZhongHongWang shares on April 19th.　Recently, digital innovation is still a hot topic. chatGPT drives the track in the field of artificial intelligence to continue to be hot, and domestic high-tech localization substitution is still the mainstream trend. High-quality development of digital economy has also been frequently proposed. To achieve a big, strong, fast and excellent digital economy, we must speed up the implementation of the innovation-driven development strategy, and comprehensively promote the innovation and application of high-tech industries from policy to market, from core cities to localities, from government departments to private enterprises. In this process, Beijing will continue to play a leading role.

　　Won the Beijing Innovative Enterprise Youxuan Software again, and strive to be the industry leader.

　　Recently, Beijing Economic and Information Bureau announced the list of innovative SMEs in Beijing, and Youxuan Software was honored on the list. As a specialized and innovative small and medium-sized enterprise in Beijing, Youxuan Software has been widely recognized at all levels of product development and innovation in recent years. In addition, Youxuan Software has been selected as one of the "Credit Leading Enterprises" for enterprise innovation in Beijing for three consecutive years, the "Top 100 Enterprises with Comprehensive Strength in Beijing Software and Information Service Industry" for five consecutive years, and the "Beijing Software Enterprise Core Competitiveness Enterprise (Scale Type)" for four consecutive years. Undoubtedly, it is a long star in this fertile land of high-tech research and development in Beijing.

　　Beijing has a strong headquarters economic effect, with a number of central state-owned enterprises gathered, and it is also the headquarters base of a large number of domestic head enterprises. At the same time, Beijing’s industrial characteristics are outstanding, focusing on scientific and technological innovation, international trade and high-end industries. The implementation of Beijing Digital Economy Promotion Regulations, based on Beijing’s digital economy resource endowment, actively responds to the objective needs of digital economy development, and creates a healthy and stable development environment for related high-tech industries in the region.

　　With the concept of "making China people use their own databases", Youxuan Software insists on independent innovation of core key technologies, and has set up R&D centers in Beijing, Wuhan, Chengdu and Xi ‘an and more than 30 branches all over the country, established a product matrix with database technology as the core, and formed an ecological product cluster to solve the data application and security needs of various industries, with customers in government, finance, energy, medical care, education and other industries. The company and its related products have been shortlisted in the product procurement catalogues of many important fields, such as the procurement of central state organs, the procurement of central government organs and the joint procurement of central enterprises, ranking among the first echelon of domestic database manufacturers and creating a "four pillars and eight pillars" enterprise in the industrial field.

　　Helping digital ecological construction in various places, Youxuan has been acting.

　　After entering 2023, the opportunities and challenges of domestic innovation manufacturers are parallel. As a leading database enterprise in China, Youxuan Software actively started to promote the industrial ecological layout, and at the beginning of the new year, it launched a 100-city exhibition tour with the help of the resumption of offline activities. At present, after the conference of Youxuan Software in Chengdu First Station and Xi ‘an Station was a complete success, it has been launched in Hohhot, Fuzhou and Jinan successively, and all of them have made outstanding achievements.

　　Hosted by Youxuan Software, "2023 Youxuan Database 100 Cities Tour Exhibition Jinan Station" was held grandly at the end of March. The meeting pointed out that, whether in key technological breakthroughs in core areas, domestic substitution of software and hardware, upstream and downstream docking cooperation of industrial chain, or in digital infrastructure construction and service level, we will continue to exert our efforts to accelerate the transformation and upgrading of traditional industries and the landing of domestically controlled independent controllable projects. In this appeal, Youxuan Software deeply digs into Shandong’s superior local resources, takes Quancheng Jinan as the strategic layout of Shandong’s market and technical service center, deeply analyzes the pain points and difficulties encountered in Shandong’s digital development, explores new development ideas, promotes the information exchange between upstream and downstream partners, and creates a forum for building a strong digital province.

　　At present, Youxuan Software has reached cooperation with State Grid Shandong Electric Power Company, Huaneng Shandong New Energy, Datang Shandong New Energy, Tai ‘an Municipal Hospital, Jinan No.4 Hospital, Qufu Normal University, Linyi, Weifang and Yantai Commission for Discipline Inspection. In addition, in order to better nourish the fertile soil for local talent cultivation, Youxuan Software cooperated with local scientific research institutes in Shandong Province to vigorously cultivate information-based innovative talents, jointly run schools with Qufu Normal University, and organize Rizhao Information Technology Application and Innovation Research Institute.

　　The expressway informatization conference held in Fuzhou will be an important platform to spy out the development trend and construction hotspots of expressways in the future. Youxuan Database 100-City Tour entered the transportation industry, bringing database-related products to the exhibition to help digital technology continue to deeply empower highway construction. In addition, in Hohhot Station, Youxuan Software, as the only database manufacturer invited to participate in the meeting, cooperated with AK Office of Hohhot Municipal Committee to hold the "Xinchuang Product Ecological Cooperation and Exchange Meeting". At the meeting, representatives of Xinchuang enterprises such as Youxuan Software, Kirin Software, Tsinghua Tongfang, Lenovo, Inspur, Great Wall, Loongson and Feiteng actively communicated and discussed the new ecology of Xinchuang industry development under the background of digital economy.

　　The 100-city exhibition tour is an important channel and product display platform for Youxuan Software to promote cooperation among all parties. On the basis of excellent product technology, Youxuan Software has continuously established a connecting hub network, continuously promoted the deepening of information innovation in various regions, promoted the establishment of a political and business communication platform, and helped the information technology application innovation to develop continuously and with high quality. The shaping of Youxuan Software Xinchuang Ecological Circle is more clear.

　　The ecological network of digital economic cooperation is gradually built to create a trend of single spark can start a prairie fire.

　　Doing a good job in the track of digital economy can be achieved not by the strength of one enterprise, but by the cooperation of upstream and downstream of the industrial chain to jointly build an industrial ecological chain. Which enterprise can build a better ecological environment and gain a longer and more stable development chain in the vast digital factor market. On the basis of building up the vanguard of Xinchuang in Beijing, Youxuan Software actively arranges cooperation with various regions, strengthens industrial links and creates a strong layout.

　　Youxuan Database is an enterprise-level security database independently developed by Youxuan Software. It has independent intellectual property rights and obtained independent original evaluation certificate. It is an independent and controllable domestic database software. Support a variety of data types, with high availability, high performance, high security, scalability and other core capabilities. Youxuan Database and Eco-partners take the scene as the cooperation point to jointly develop innovative products that meet the needs and cooperate to meet customer needs. Youxuan Software has completed the adaptation with most chip, operating system and application software manufacturers, meeting the needs of the party and government fields, finance, telecommunications, electric power, petroleum, transportation, aerospace, education, medical care and other industries in China.

　　Recently, Youxuan Software has not stopped the pace of development and progress in the deployment and cooperation between government affairs and enterprises. The company continued to promote the Lingyun plan, and further reached cooperation with Chongqing 12345 in the integration of digital government affairs. In addition, the Youxuan database management system completed compatibility testing with various products of Lenovo. In ecological construction, Youxuan has never stopped exploring and achieved continuous industrial empowerment and win-win through strategic cooperation.

　　The footprint of Youxuan Software’s 100-city tour has gradually lit up important core cities in China like a spark. What we see is not only the bright achievements made by Youxuan Software in the tour activities, but also the ecological foundation that Youxuan Software has built in various regions through the tour itself. When the external environmental reserve is reached, Youxuan Software will cooperate with every partner in the ecological circle to show its solid strength in the market of Xinchuang!

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Lantern Festival in Jin Ping Mei and A Dream of Red Mansions

2024年3月3日 | admin | gzxq
Jin Ping Mei and A Dream of Red Mansions are the two most outstanding novels about the world in the history of Chinese ancient novels, and the relationship between them is very obvious. Many scholars in Qing Dynasty thought that A Dream of Red Mansions was born out of Jin Ping Mei and was a reflection of Jin Ping Mei, that is, the so-called "theory of birth" and "theory of reflection". Jin Ping Mei, for the first time, shifted the focus of the novel from the legend of ghosts and gods and historical romance to daily family life, describing the rise and fall of the Ximen Qing family. A Dream of Red Mansions inherits this theme and depicts the process of Jia’s prosperity and decline. In the two books, there are many descriptions of festivals, and the Lantern Festival is the most important one. From the description of the Lantern Festival, we can not only see the difference in family status between Jia Fu and Ximen Qing, but also see the reference and inheritance of A Dream of Red Mansions from Jin Ping Mei in terms of structure and plot.
Ximen Qing’s "Rich" and Jia’s "Expensive"
Ximen Qing is the son of a well-to-do family in Qinghe County. His father started a drugstore, and he was promoted step by step by buttering up various officials, so he became a nouveau riche from scratch. Jia Fu was not only a founding hero, but also became a relative of the country after Yuan Chun entered the palace. By Baoyu’s generation, he was already a noble family. Comparing the descriptions of the Lantern Festival in the two books, we can clearly see that Ximen Qing’s family highlights the word "rich" on holidays, which shows the financial resources of the nouveau riche everywhere, while Jia’s family is rich in financial resources, but the details show its status and position, highlighting the word "expensive".
Talking about the flower viewing lamp in the fifteenth episode of Jin Ping Mei. It is an important tradition of Lantern Festival since ancient times to watch lanterns. Lanling Xiaoxiao was born in this time, and the Lantern Festival was beautifully written, and there were only a dozen kinds of lanterns mentioned. Extract a paragraph for your reference:
"The rocks wear Ssangyong to play in the water, and the clouds reflect the sky alone. The golden screen lamp and the jade floor lamp see a piece of pearl; Lotus lanterns and hibiscus lanterns are scattered around thousands of places. Hydrangea lights, bright and clean, snowflake lights, blowing one after another. "
The fifteenth illustration of Jin Ping Mei, Lantern Festival Lantern Festival.
In A Dream of Red Mansions, Princess Yuan visits her relatives at the Lantern Festival, and this time it is also full of colors. Jia Fu spent a lot of energy up and down, decorated with lanterns, and hung lanterns in Ningrong Erfu. "All the lanterns compete for glory up and down, which is really a glass world, and jewelry is dry." There are also all kinds of exquisite bonsai lights, beaded curtains and embroidered curtains on board, and it goes without saying that ". Yuan Chun "sighed silently about the extravagant expenses".
In the 87th edition of A Dream of Red Mansions, when Yuan Fei was on her mother’s visit, the imperial wives of Jia Fu lined up to greet her.
Although Ximen Qing has lanterns hanging at home, he still focuses on the street lantern market. Jia Fu is a noble family with strict manners. The women in Jia Fu can’t show their faces in the market like Simon Meng Yulou and Pan Jinlian, etc., for character to play with. Plutocratic family, the second residence of Ningrong, is decorated with lanterns. It is as lively and colorful as the street lantern market, and it is full of aristocratic style.
The two families are different, and we can see a thing or two from go to the opera. Go to the opera is also one of the customs of the Lantern Festival. In the fifteenth session of Jin Ping Mei, Li Pinger once invited a play to sing lanterns for everyone, and Ximen Qing specially let the maids at home learn to play and sing. In the 24th episode, four maids, Chun Mei, Yuxiao, Yingchun and spearmint, were asked to play lanterns at home.
In Jia Fu, Yuan Fei taught Jia Qiang to buy twelve girls from Gusu before mothering, but made room for pear fragrance court to make these twelve girls sing in operas at home. In addition to the family troupe, there are three special stages in Jiafu, namely, Daguanlou, Rongqingtang and Dahua Hall, among which the stage in Daguanlou will only be used when Princess Yuan returns to the province.
In addition, from the perspective of the whole book, there are also great differences between Ximen’s family and Jiafu’s singing content. According to scholars’ research, there are many descriptions of operas in Jin Ping Mei, including operas, miscellaneous operas, cantata and quyi. Pan Jinlian said, "I don’t listen to plain music in every ear, but only listen to meat." Acting in Jia’s house is mostly a more elegant and delicate Kunqu opera.
Fireworks are one of the reserved programs of the Lantern Festival. In the section "Setting off fireworks in front of the luxurious house" in Jin Ping Mei, Lan Ling smiles and shows the upstart of Ximen Qing to the fullest. Simon’s house set up fireworks early, and set off fireworks in the street center. Ximen Qing and others watched it upstairs, and the citizens who heard the news downstairs came to watch. "I don’t know the number of people who watched it." It is said that the great government of Ximen is setting off fireworks here. Who will not come to watch? "
Finally, Jia Fu and Ximen Jia have different tastes in food. There are many Yuanxiao foods mentioned in Jin Ping Mei, such as "four dishes of soup, one jar of wine, one plate of peach and one plate of noodles", melon seeds, "high-topped sugar, fresh fruit", "a box of Yuanxiao, a box of sugar crisp" and so on. Although there are many delicious foods, most of them are common in the market. However, Jia’s family is often ingenious in food, which is more exquisite than luxury. For example, in the section of mothering in Yuan Chun, the palace gave a dessert called "steamed crisp cheese with sugar". In the fifty-five chapters, we also mentioned "Duck Porridge", "Jujube Rice Porridge" and "Almond Tea". From the names, we can see the exquisite intentions, not to mention the famous dishes such as "eggplant" and "sour bamboo shoots and chicken skin soup".
It can be said that both the "wealth" of Ximen’s family and the "expensive" of Jia’s family are very lifelike and have their own characteristics.
Preventing the Festival after the Lantern Festival: Inheritance and Metaphor
As mentioned earlier, A Dream of Red Mansions and Jin Ping Mei have an obvious inheritance relationship. Scholars in Qing Dynasty said that A Dream of Red Mansions was born out of Jin Ping Mei, which is also reflected in the arrangement and writing of the Lantern Festival in the book. Lantern Festival is not only a festival model depicted in two books, but also an important node in the structure, which contains profound metaphors of prosperity and decline.
From the structural arrangement, the position of Lantern Festival in the two books has an amazing correspondence. In Jin Ping Mei, Ximen celebrated the Lantern Festival for the first time in the fifteenth cycle, while in A Dream of Red Mansions, it was in the seventeenth to eighteenth cycle.
After the Lantern Festival, Ximen Qing began to build his garden, and made a private life with Li Pinger. He not only acquired the property of Li Pinger, but also quickly ingratiated himself with Cai Jing. This is the important node of Ximen Qing’s successful official career.
The fifteenth chapter of Jin Ping Mei
It was around the Lantern Festival that the Grand View Garden was completed and became the residence of Jia Baoyu and his sisters. It is an important event for the Jia family to be a princess, and it can be seen from the following text that the conferring of Yuan Chun as a princess is the last important event for the Jia family to improve its status. Before that, the author had already explained the embarrassment of Jia’s lack of internal capsule through Leng Zixing and others. Similarly, Yuan Chun’s death was accompanied by the final decline of Jia’s family. Therefore, the Lantern Festival, when Yuan Fei was visiting her mother, happened to be the last short-term rise of Jia’s family before it completely declined.
The structural significance of another Lantern Festival is more obvious.
Forty-two to forty-five chapters in Jin Ping Mei depict a Lantern Festival in detail. Before that, Ximen Qing’s beloved concubine Li Pinger gave birth to his son Guan Gang, and he himself was promoted to official position. His family career was satisfactory, and when Simon’s family was in its heyday, the Lantern Festival also had a good time. However, after that, it was soon written that "Monk Hu appeared to apply medicine", which laid a clue that Ximen Qing died of sexual indulgence, which was the turning point of the book’s prosperity and decline. We soon saw that Ximen Qing lost something he was proud of, and the Ximen family could never have such a prosperous Lantern Festival again.
The forty-second chapter of Jin Ping Mei
Similarly, A Dream of Red Mansions has arranged such a grand festival celebration near the middle of the book. The author used fifty-three and fifty-four chapters to describe a grand celebration of cooking oil with flowers and bright fire. Before this time, several new sisters had just arrived in the Grand View Garden, and this Lantern Festival was also the one with the largest number of people in the Grand View Garden. However, even in such a grand celebration, the plot of Wu Jinxiao’s tribute still shows that Jia’s supply is not as good as before. After the Lantern Festival, Xifeng, who was in power in Jiafu, had a physical crisis. In less than half a year, by the time of the Mid-Autumn Festival banquet, the characters were scattered and the scene of decline appeared. As the fifty-three Hui Dynasty fat group said: "The first half of put in order, the second half of Xiao Luo, alternating shades." Fifty-three or fifty-four Yuan Xiao banquets are the turning point from prosperity to decline.
87 version of "Dream of Red Mansions" stills, Rongguofu Lantern Festival Banquet
So, why is the Lantern Festival?
In addition to the important position of Lantern Festival in ancient China, and its unique entertainment and celebration nature, as Andrew H. Plaks pointed out in "China Narratology", novelists in Ming and Qing Dynasties prefer to describe Lantern Festival, and arrange the hottest scene in the coldest season of the year, which can be regarded as a fable of life’s ups and downs, which contains the dialectic of ups and downs in China’s philosophy. Both Jin Ping Mei and A Dream of Red Mansions tell readers in the most prosperous festivals that this is just the appearance of the desolation of life. The more lively the banquet, the more it reminds readers that there is no banquet that never ends, and the prosperity will inevitably be scattered and desolate. The fog of sadness is all over Hualin, and the white earth is the truth of life.
As Cao Xueqin told us in the first time in A Dream of Red Mansions, it is time to prevent the smoke from going out after the Lantern Festival. After the prosperous Lantern Festival, both books ushered in a long and grand curtain call. Those beautiful or dirty, fresh or dull will fade away step by step. Whether Ximen Qing, Jia Baoyu or you and I are immersed in them, we will finally face the truth of life.
(This article is from The Paper, please download the "The Paper" APP for more original information)
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Without Rosaceae, where can there be spring？

2024年3月2日 | admin | xwxq
It is said that there are about 124 genera and more than 3,300 species of Rosaceae, and most of the flowers we see most often belong to the Rosa family, which is more powerful than any department in human history.
Produced by: China Popular Science Expo
In spring, the earth warms up and everything begins to stir. Can’t you hold back the heart of going out for a spring outing? Anyway, Xiaobian really wants to skip work and enjoy the flowers!It is said that there are about 124 genera and more than 3,300 species of Rosaceae, and most of the flowers we see most often belong to the Rosaceae family.Its variety is more powerful and huge than any department in human history. It is really the "one bully" in spring!
Rosaceae is divided intoFour subfamilies, Spiraea subfamily, Applesubfamily, Rosasubfamily and Lyiaceae.And today we mainly come to know the two most common subfamilies.Apple subfamily and Li Yake, know 7 genera,Peach, plum, apricot, pear, cherry, apple and papaya.Looking at these genera, this small series said that flowers are not beautiful, I don’t care anymore, I just drool a little!
But I will try to hold back. After all, I’m not a blogger. I’m a serious science popularization gentleman. Come and have a look!
I. (Lyiaceae) Plum
1. Li
it is saidLi Bai, a teenager, wrote a poem "Li Hua is in full bloom and a tree is white"Let his father feel that his son can become a great poet when he grows up, so he takes two words from the poem as the name of Li Bai.The beginning of the story is so unexpected, although I don’t know whether it is true or not, but that poem does write the characteristics of Li Hua’s gray.
Plum, flowers and leaves come out together, two or three flowers are born on the branches, the stamens are yellow and the pedicels are long.
2. Purple leaf plum
Originally a purple leaf variety of cherry plum, it has become one of the common ornamental trees because its purple leaves are dazzling in a clump of green.So you are a product of mutation.
Image source ppbc: Liu Bing
2. (Lyiaceae) Sakura
sakura
Cherry blossoms generally have slender flower stalks, corymbose inflorescences, notched petals and horizontal stripes on branches. At present, there are two common cherry blossom varieties in China, one is Hejin Sakura and the other is Yoshino Sakura.Remember the romance of five centimeters per second under the cherry trees in those years?
1. Hejin Sakura,Named after its discovery in Hejin Town, Japan, it is the earliest cherry blossom. Those who go to Japan to enjoy cherry blossoms very early are mostly Hejin Sakura, which is the representative of early cherry blossoms. The petals are dark pink and the buds are light yellow. The flowers and leaves alternate with each other, which is beautiful.
Image source: www.kenphoto.com 　
2, Yoshino Sakura dyed wellAlso known as "Tokyo Sakura" or "Japanese Sakura". It is a variety cultivated after artificial hybridization. The flowers are pale pink when they just bloom, and gradually turn white after they are completely open. The stamens are shorter. Pink and white flowers are adorned with branches, gorgeous and elegant, and are loved by more and more people.
Image source: wikipedia 　
Iii. Peach (Lyiaceae)
peach
Because of Tao Yuanming’s Peach Blossom Garden, Taolin has been the representative of the ideal world since ancient times. The peach blossom originated in China is the object of praise from ancient times to the present."The peach dies, burning its splendor."Pale pink flowers, bright and charming.So how do you distinguish the blossoming peach blossoms from the flowers?
When a peach blossom is in full bloom, it usually grows new leaves, showing the state of flowers and leaves coming out together. In addition, a peach blossom is generally a solitary flower, that is, a flower is born alone on a twig. Having no or extremely short pedicels.
Image source: wiki 　
Iv. Apricot (Lyiaceae)
Step 1: apricot
The Ming Dynasty’s Guang Qun Fang Pu describes apricot flowers:"Leaves like plum, big difference, reddish in color, round and sharp. The flowers bloom in February, and the unopened color is pure red. When they bloom, they are white, slightly reddish, and when they fall, they are pure white. "Apricot flowers are pure red when they are not in bloom, which means the deep red calyx of apricot flowers. Dark reddish-brown branches and calyx are signs of apricot flowers. In addition,The calyx is erect from bud to first bloom, and often reflexed after flowering.. Petals are nearly round, without pedicels, and flowers first and then leaves. These are the distinguishing features of apricot flowers.
Image source ppbc: Zhu Xinxin
This one can clearly see the sepal inversion.
5. (Malinae) Pyrus
pear
Cen Can’s "is like a spring gale, come up in the night and blowing open the petals of ten thousand pear trees" compared Snow White to a pear flower, which, though metaphorically speaking, also highlighted the biggest feature of pear flower, namely, its white flowers.. And the purple-red stamens in the white petals have become a unique representative of pear flowers. Of course, as an apple subfamily, 2-5 stigmas are also an important symbol to distinguish it from the species of Lyriaceae.
(Malinae) Malus
"Qunfangpu" records that "there are four kinds of begonia, all of which are woody: Begonia sessilifolia, Begonia pendula, Begonia Xifu and Begonia papaya, which are commonly called’ four kinds of begonia’". However, these four products belong to two genera in botany. Malus pendula and Malus Xifu belong to the genus Malus, while Malus sessiliflorus and Malus papaya belong to the genus Malus.
1. Begonia pendulaThe petals are pink. With more and more cultivated species, there are double petals and white flowers, but the name of the flower, the long drooping filiform pedicel and the upside-down flower are the identification points of Begonia pendula.
2. Xifu BegoniaIt is called "sea red" in Compendium of Materia Medica and can be used as medicine. Petals are mostly pink. Compared with the shyness of drooping begonia, Xifu begonia proudly blooms with a gesture of looking up at the sky.One is like a little jasper, and the other is like a good family. Do you know how to distinguish?
Seven, (Apple subfamily) Chaenomeles
1. Begonia pedunculata
"Trivial Record" once said: "Cherry grafted with stem begonia becomes drooping begonia; If the pear tree is attached to the stalk, it will become Xifu. "It can be seen that there are genes of begonia sessilifolia in the above two kinds of begonia with national color and fragrance. However, compared with the pink and delicate of Malus pendula and Malus Xifu, Malus pedunculata has its own unique charm.
Crabapple with stem is also called wrinkled papaya, and it is recorded as "papaya" in Compendium of Materia Medica. Its flowers bloom before the leaves, with brilliant red, light red or white. Pedicels are so short that they stick to branches, hence the name of sticking pedicels.
2. Papaya begonia
In the Book of Songs, papaya begonia is called Mutao.It is also called "Chaenomeles tomentosa" in Chinese flora. Its petals are reddish or white, and the fruit is fragrant. The flowers of Begonia papaya and Begonia sessilifolia are equally short and thick or nearly sessile, so it is difficult to distinguish them. However, Begonia sessilifolia is usually a cluster of 3-5 flowers, while Begonia papaya is a cluster of 2-3 flowers.
I don’t know if you are satisfied with the Rosaceae flowers that Popular Science Jun brought to you today.From peach blossom to pear blossom, from Li Bai to Cen Can, from The Book of Songs to Compendium of Materia Medica, there are both the romance of cherry blossoms and the delicious fruit that can be seen soon. I don’t need to say much, so let’s have a spring outing!
(Note: The pictures in this article are from the Internet. )
This paper is a comprehensive compilation from China’s book "Who are these flowers and flowers?"? Author: Xu Wenxiu, Wuhan Botanical Garden, Chinese Academy of Sciences
This article is from "China Popular Science Expo", please indicate the source.
Editor: Zhao Panpan
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