Vehicle twin - photoelectrical pointing system mainly consists of reflex light - tubes, a autocollimation theodolite and modulators.车载双联光电瞄准系统主要由折转光管 、 自准直经纬仪和相应的调制器组成.Just to avoid autocollimation errors, only Elbo Cont...
It was originally obtained by decarboxylation of benzoic acid.它最先是由苯甲酸脱羧而得到的.The uses and synthetic methods on 2,4 - Dichloro - 5 - Fluoro - benzoic acid were described in detail.简要概述了2,4-二氯-5-氟苯甲酸的用途及其合成方法.Join the 1 % ...
He ruminated on the terrible wastage that typified American life...他认真地考虑了美国生活中典型的严重浪费问题。John F . Kennedy typified the new frontier spirit.约翰. 肯尼迪为新拓荒者精神的典型人物.He thus typified the constant introspection wherewith he tort...
The operation could prolong his life by two or three years.这次手术可使他多活两三年。He has decided to prolong his visit through the weekend.他已决定把他的访问延长到过完周末.The defendant feigns illness to prolong the trial.为了拖延审判，被告装病。...