您要查找的是不是：
- residues of organoehlorine pesticide 有机氯农药
- organoehlorine pesticides(OCPs) 有机氯农药
- Organoehlorine pesticides 有机氯农药
- Fumigants are pesticides acting in gaseous phase. 熏蒸剂是以气体形式作用的农药。
- The fertility of the soil has been greatly improved by the use of pesticides. 土壤施用杀虫剂後肥力大增。
- Farmer Jones was a dyed-in-the-wool traditionalist; he would never use any modern pesticides. 农夫琼斯是一个顽固的传统主义者，他从不愿使用任何新式的农药。
- Most pesticides do not comply with this ideal. 大多数杀虫剂在这一点上都不完全理想。
- Many pesticides are highly toxic. 许多杀虫剂毒性很大。
- The crops are regularly sprayed with pesticides. 农作物定期喷洒杀虫剂。
- Any of various hydrocarbon pesticides, such as DDT, that contain chlorine. 有机氯一种含氯的碳氢化合物杀虫农药，如滴滴涕杀虫剂
- Some people were poisoned by pesticides. 有些人农药中毒。
- Their spray pesticides, for their prayers. 为它们喷杀虫剂，为它们祈祷。
- Organophosphate pesticides poisoning. 有机磷农药中毒
- organoehlorine pesticide 有机氯农药
- Also, some organic pesticides are harmful to lambs. 而且杀虫剂对羊羔也是有害的。
- New herbicides and pesticides were developed. 新型除草剂与杀虫剂得到开发。
- Residues of pesticides can build up in the soil. 残余的杀虫剂会在土壤中积淀起来。
- Data on the world production and use of pesticides is fragmentary. 世界上有关农药的生产和利用的材料是很分散的。
- Red Tide is usually caused by agricultural pesticides, detergents or conditions, which increase nutrients in the water. 赤潮通常是由于农业杀虫剂、清洁剂引起的，或是因为营养增大的水域状况。
- If we don't develop suitable pesticides--and use them--we will really have silent spring because there won't be any trees left for the birds to sing in. 如果我们不研制合适的杀虫剂以供使用，那我们将真正迎来静悄悄的春天，因为到时将没有可供飞鸟栖身歌唱的树木了。
