I was a dunce at chemistry.我在化学方面是个劣等生....a chemistry textbook.化学课本Ester is one of the most important compounds in Organic Chemistry.酯是有机化学中最主要的化合物之一.It was by using anima that Besant and Leadbeater could observe atoms a...
The Oxford Chemistry Primers aim to cover important topics in organic chemistry.《牛津化学初级读本》丛书旨在论述有机化学中的重要问题。He is more highly educated, with a PhD in Chemistry.他受过更高的教育,拥有化学博士学位。I wasn't too keen on physics and chemi...
The control effect of DDVP . carbaryl and cypermethrin smoke agents were 95.85 % 31.51 % and 97.66 % respectively.西维因烟剂防治效果为 31.51%,氯氰菊酯烟剂防治效果为97.68%....
We need to restore respect for the law-enforcement agencies.我们需要重塑执法机构的声望。The civil war is obstructing distribution of famine relief by aid agencies.内战阻碍着救援机构对饥荒赈济物资的配给。He sees sense in merging the two agencies while bot...