The BOD test is essentially a bioassay procedure.BOD试验实际上是一项生物测定方法.The bioassay of freshwater sediment toxicity is described.描述了淡水沉积物毒性的生物测试方法.The field bioassay of 4 trunk injection insecticides ( 14 % Imidacloprid + DD...
我留下一名中士指挥，自己策马前去侦察敌情。I left a sergeant in command and rode forward to reconnoitre.温斯顿少校策马疾驰而去。Major Winston galloped into the distance.他用马刺策马.He dug in his spurs....
I spoke from the pulpit ad lib.我在讲坛上发表即兴演说。I lost my notes and had to ad - lib the whole speech.我把讲稿丢了,只好临时说了一通.She delivered her lines ad - lib.她是即兴说出的台词....
The factory's workforce has dwindled from over 4,000 to a few hundred.工厂雇员总数已经从4,000多人减少到几百人。The cocoa industry dwindled because it became increasingly difficult to cover costs.由于越来越难以收回成本，可可产业日渐衰落。His wealth dwindl...
The police will not relent in their fight against crime.警方在跟犯罪分子的斗争中决不手软.Your own family might in time relent.你自己的家庭总有一天会变温和.I confess the inhumanity of this action moved me very much, and made me relent exceedingly.我自认这...
汽车的排挡可用来加速或减速.Gears on an automobile may be used either to decrease or increase speed.你对这辆汽车的排挡还不熟悉.You haven't got the feel of the gears in this car yet.让汽车排挡置于空挡位置.Leave a car in neutral gear....