The results showed that bifenthrin was more stable than chlorpyrifos.

结果表明，联苯菊酯的持效性比毒死蜱的长。

Chlorpyrifos was one kind of organophosphorus pesticides with higher efficacy and could substitute highly poisonous metham-sodium and parathion .

毒死蜱是替代甲胺磷和对硫磷等高毒农药的高效有机磷杀虫剂，在世界范围得到广泛使用。

The degradation dynamics of chlorpyrifos residues in spinaches grown in winter-greenhouse, spring-greenhouse, and open-field was investigated.

在冬季大棚、春季大棚和露地栽培条件下，研究了有机磷农药毒死蜱在菠菜中的残留降解动态。

Chlorpyrifos and other insecticide OPs are inhibitors of anticholinesterase , an enzyme vital to the nervous systems of animals and humans.

和其他有机磷杀虫剂一样，毒死蜱为抗胆碱脂酶抑制剂。抗胆碱脂酶为动物和人类神经系统重要的酶。

Back in this country, the U.S. Environmental Protection Agency has announced that it will not ban the widely used pesticide chlorpyrifos.

国内方面，美国环保局宣布将不再禁止使用广泛的杀虫剂氯吡磷。