【题目】丝绸的形成A beautiful silk dress comes from thousands of smallsilkworms(蚕)! Silk is made by insects called silk-worms. It takes about 5,500 silkworms to make 1 kilo-gram of silk. The process was discovered by the Chineseabout 5,000 years ago.The process starts with the eggs of...
The credit of making the first mechanical clock goes to ancient China.8. This was during 618 and 907.Silk FabricSilk, the favorite fabric of many girls out there, is also a Chinese invention. Although we all know that silk ismade by ilkworms, _9_. The oldest silk which has been ...
Silk is a fabric commonly made from the cocoons of a domesticated caterpillar species (not worms) known as Bombyx mori. I say “commonly” as mulberry silk which is made from the cocoons of Bombyx mori, represents 90% of the silk industry. As it turns out, there aredozens of silk variet...
Even with the help of complicated machines and chemicals, humans still don’t know how to make a material this strong, stretchy, and light. Spiders are still the champions at this. In fact, silk-making animals include crickets, glow-worms, ants, bees, etc. Some of these make silk to ...
There is no explanation here if tussah silk is stronger or more durable than domesticated silk. Are the domesticated silk worms burned or boiled along with their products? Comment about this article, ask questions, or add new information about this topic: Name: E-mail: Show my email publicly...
(1)about, Jenny's, project, is, silk worms(.) (2)interesting, movie, is, very, the(.) (3)great, did, you, a, job(!) (4)I, one, to, Beijing, visit, hope, day(.) (5)ready, for, they, are, science, fair, the(?)相关...
I.看图写单词,补全句子。(5分)1.Worms give us silk.Thisis made of silk.2.Plants give us cotton.Thisis made of cotton.3.It's cold outside.Please wear your4.Theseare very beautiful.5.It's warm in the house.Please take off your ...
英文 Concrete several meets English in where [translate] abarstool bar [translate] aeven surprisingis the fact that silk is made by special worms 均匀 惊奇事实丝绸由特别蠕虫做 [translate] 英语翻译 日语 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 意大利语翻译...
The temperature and dampness (湿度) of the rooms where the worms are kept must be exactly right, or the worms will die. Also the silkworm easily catches diseases which spoil the cocoon. It is the cocoon that is important, for it contains the silk fibers. When the cocoons are ready, ...
By the year 1 A.D, silk wassold as far west as Rome, and all along the SilkRoad. Finally around the year 300, silk alsotraveled from China to Japan.In 1522, theSpanish brought silk worms to Mexico. Todaypeople around the world stll make manybeautiful things from silk. But silk isn'...