The process of making silk originated in ancient China, with archaeological evidence suggesting it was invented around 4000 BC during the Neolithic period. This sophisticated process, known as sericulture, involves raising silkworms and harvesting their cocoons to produce silk fibers. The question asks ...
(每空1分,共10分)Silk was first invented in ancient China. No one knows 1 when it happened,but many believe in a Chinese legend about a “Goddess of Silk". She was the wifeof the Yellow Emperor around 3,000 BC, and is believed to be the 2 person todiscover the silk-making process...
解析 The process of making silk was invented in ancient China around 3000 BC. The question asks about the time when the process of making silk was invented. The process of making silk was invented in ancient China around 3000 BC.反馈 收藏 ...
This process created the quality silk that ancient China needed to successfully prosper during this era. The process of sericulture reached Korea around 200 BC but it took years after 300 AD before the practice was established in geographical locations as far as India (“Silk History”). Silk s...
Silk is a thin, yet pretty strong fiber(纤维制品).Thousands of years ago, in ancient China, people beganmaking silk fiber into a soft, smooth fabric(织物). Atfirst, silk could only be used in the palace, whichshowed the high position, and then the officials'(官员)home, and finally it...
Then the silk filament can be reeled off the cocoon in a single fiber. This fiber is triangular in cross-section, reflecting light at different angles, giving silk fabric its distinctive shimmer. The single strand is automatically attached to another during the silk-making process to improve ...
Silk was also a valuable export (出口产品) in ancient China. Foreign people were interested in silk, and they always paid high prices for it. The Chinese emperors wanted to keep the process of silk making a secret. Anyone who was caught telling the secret or taking silkworms out of China...
the world’s raw silk. During and afterWorld War IIthesubstitutionof such man-made fibres asnylonin making hosiery and other garments greatly reduced the silk industry. Still, silk has remained an important luxury material and remains an important product of China, Japan,South Korea, andThailand...
history of Chinese silk can date back to(追溯到)more than 5,000 years_2. Silk was very_3in ancient China. Silk was then a symbol of status(身份)because only the emperors and their family memberscould wear clothes made of silk.The Chinese emperors kept the process of makingsilk a 4_....
The insect has 28 chromosomes, 18,510 genes, and over 1,000 genetic markers.Bombyxhas an estimated 432 Mb genome size, much larger than fruit flies, making the silkworm an ideal study for geneticists, particularly those interested in the insect orderLepidoptera.Lepidopteraincludes some of the mos...