中文字幕区一区二_免费欧美一区_久久精品视频免费播放_一级毛片免费的_亚洲AV永久无码天堂网毛片_免费在线影视观看入口

position: EnglishChannel  > InnovationChina> Sericulture's Ancient Beginnings

Sericulture's Ancient Beginnings

Source: Science and Technology Daily | 2023-02-16 10:40:40 | Author: BI?Weizi


A feeder camps cocoons with square clusters in a large silkworm farming base in?Xinwei Town, Meng Shan County, Guangxi?Province, Dec. 24, 2022.?(PHOTO:VCG)

By?BI?Weizi

China is the first country in the world to raise silkworms and make silks. Before cotton was introduced to the Yangtze and Yellow River basins, silk was one of the main raw materials for clothing and quilts in ancient China, and silk weaving was an important material for economic exchanges in agricultural and pastoral areas.

The Chinese legend says that the technology of raising silkworms was invented and introduced by Leizu, the wife of Yellow Emperor, in the 27th century BC, which indicates the long history of Chinese sericulture. In recent years, archaeologists have discovered uncarbonized, yellowish-brown silk pieces and carbonized silk ribbons and threads that date back to about 4700 years ago, at the Qianshanyang site in Wuxing, Zhejiang province, along with silk fragments adhering to the bronze ware at the Yin tomb in Anyang, Henan province.

In addition, there are pictographs of mulberry, silkworm, and silk in the Yin dynasty, which demonstrates that China is the birthplace of the silk industry. The original silkworms and sericulture techniques then spread to many countries throughout the world from China.

Sericulture is one of the great inventions of the ancient Chinese. For the past thousands of years, Chinese sericulturists have selected and bred many excellent farming varieties of worms, worked out a set of feeding methods, and created a variety of sericulture tools, which have all had a positive influence on the world of sericulture and silk industry.

Editor:畢煒梓

Top News

Tapping Into China's Vast Opportunities

Two recent expos — the fifth edition of the China International Consumer Products Expo (CICPE) and the 137th edition of the China Import and Export Fair (the Canton Fair) — have once again solidified the country's role as a cornerstone of global commerce.

LLM Speeds Up High-altitude Research

QwQ-32B, a reasoning large language model (LLM) by Alibaba's Tongyi Qianwen (Qwen), has been integrated with the scientific research of several institutes of the Chinese Academy of Sciences (CAS), facilitating research on solar flare and water resources on the Qinghai-Xizang Plateau.

抱歉,您使用的瀏覽器版本過低或開啟了瀏覽器兼容模式,這會影響您正常瀏覽本網頁

您可以進行以下操作:

1.將瀏覽器切換回極速模式

2.點擊下面圖標升級或更換您的瀏覽器

3.暫不升級,繼續瀏覽

繼續瀏覽
主站蜘蛛池模板: 国产情人综合久久777777 | 久久免费毛片 | 在线观看国产成人av片 | 亚洲一区二区三区爽爽爽爽爽 | 亚洲人片在线观看 | 3d动漫精品久久一区二区 | 欧美五月 | 国产a级一级片 | 久久无码人妻国产一区二区 | 中文字幕av久久激情亚洲精品 | 东京热加勒比无码少妇 | 精品国产九九 | 日本少妇三级HD激情在线观看 | 曰本一区二区 | 色戒2小时38分无删除版 | 欧美性猛交久久久乱大交 | 黄色一级片在线播放 | 大地资源视频在线观看免费高清 | 中国极品少妇videossexhd 老熟妇bbxxx视频 | 亚洲欧美国产精品 | 亚洲成人精品免费 | 午夜在线看| 朝鲜女人大白屁股ass | 午夜欧美一区二区三区免费观看 | 成人在线观看国产 | 最新精品国偷自产在线老年人 | 免费在线激情视频 | 最新国产一区最新在线 | 国产福利片在线 | 国产一级淫片在线观看 | 午夜福利理论片高清在线观看 | 欧美福利视频网站 | 亚洲精品中文在线观看 | 欧美成人高清视频 | 亚洲欧美一区二区三区视频 | 97超碰国产精品无码分类 | 久久久噜噜噜久久中文字幕色伊伊 | 四川少妇被弄到高潮 | 穿越时空的少女免费观看动漫日语 | 秒播福利视频 | 久精品国产欧美亚洲色aⅴ大片 |