这就是所谓的筑巢或结茧.This is called nesting or cocooning.长期的行军使他的脸上结茧了.The long march had callused his feet.桑蚕取食桑叶后吐丝结茧, 然后钻出茧壳羽化为蛾.Leaves after feeding silkworm cocoon silk knot, and then drilled for the moth eclosion cocoon she...
Contrast the formation of intrusive and extrusive igneous rocks.对比形成的侵扰和挤压火成岩.Its petrology , petrochemistry and geochemistry feature show the intrusive is post - collision and strongly - peraluminous granite.岩石学 、 岩石化学、...
Tell it quickly, nervously , and without a vestige of self - respect.请告诉我们你的要求.A human being has the vestige of a tail.人类仍有尾巴退化的痕迹.Some upright stones in wild places are the vestige of ancient religions.荒原上一些直立的石块是古老宗教的遗...
已经分化的组织分泌物称为抑素.Substances differentiated tissues secrete are called chalone.目的:在酿酒酵母中表达和分泌人血管抑素.To express and secrete human angiostatin in S . cerevisiae.目的 观察生长抑素十四肽 ( 施他宁 ) 对食管静脉曲张破裂出血的治疗效果.Aims : To evaluate the effe...