越南战场上用于毁灭林区的“橙剂”,其成分是二氧杂芑。Dioxin was the ingredient in Agent Orange, used to defoliate Vietnam.所形成的水解反应物是二盐酸甲撑二氧胺.The resultant hydrolytic reaction product is methylenedioxyamine dihydrochloride.后者是由二氧杂环戊烷中活化较弱的C -H 键离解而...
对峙双方都只是在瞄准射击无辜的旁观者。Both groups on either side are just picking off innocent bystanders.少数几个旁观者站在现场观看。A handful of onlookers stand in the field watching.事故现场的无辜旁观者innocent bystanders at the scene of the accident...
鼠类繁殖力很强.Mice are prolific breeders.他利用蚜虫繁殖力资料说明了抗生作用对虫口动态的理论效应.He used aphid fecundity data to elucidate the theoretical effects of antibiosis on insect population dynamics.就最广的意义而言,繁殖力一直被用来评价农药的影响.Productivity has been ...