国外培育农作物新品种有人喜欢穿棉布衣，但却觉得不够保温。美国科学家已经培育出新棉花，做成的棉布比正常棉花要保温的多。这种新的棉花植物是通过遗传工程获得的结果。研究人员从一种产生天然塑料的细菌提取出基因。这种塑料像聚脂，聚脂是常常用于织物原料的一种很结... Some people like to cultivate new varieties of crops abroad to wear cotton clothes, but did not think enough insulation. American scientists have nurtured new cotton, made of cotton than normal cotton to be more insulation. This new cotton plant is the result of genetic engineering. Researchers extracted the gene from a bacteria that produces a natural plastic. This plastic like polyester, polyester is often used in fabric raw materials is a knot ...