大多数海洋腹足纲软体动物在某些幼体阶段形成一种有纤毛的游泳器官。Most marine gastropod mollusks develop a ciliate swimming organ in certain larval stages.我那不怕疲劳的小纤毛每秒钟约做10次清扫动作.My tireless little cilia make about ten sweeping strokes a second.健康的皮肤, 粘膜...
At present are 2 - chloro ben - mode of destructible cover stealthily.目前主要有2种形式可破坏显偷换盖.Abstract: 2 - Chloro - 5 - chloromethylpyridine is an important intermediates of the pesticide and the pharmacology.文摘: 2- 氯 -5- 氯甲基吡...