It may be composed of allelochemics such as alkaloids or terpenes.它可以由异种化合物例如生物碱或萜稀组成.The shop name shall be composed of more than two Chinese characters.字号应当由两个以上的字组成.All matter is found to be composed of atoms and mole...
The racer meant to win the 500 - mile race at all hazards.这位竞赛者决心不顾一切危险,赢得这场500英里的车赛.Toxicologists attempt to identify and understand toxic hazards.毒理学家试图找出并了解毒害风险。We perfected a hand-signal system so that he could keep ...
介绍一种数字微欧计的原理 、 特点及使用方法.This paper introduces a kind of digital micro - ohmmeter, its characteristic and the use method.介绍了高精度、数字式多量程微欧计的设计方法.This paper dealt with the design of a high precision and digital instrument of ...