1·Objective To observe the estrogenicity of organophosphorus and pyrethroid pesticides.
目的观察有机磷与拟除虫菊酯农药的拟雌激素活性。
2·Obiective Test the relationship between the heating time of electrothermal vaporizing liquid and the residues of pyrethroid in mandril.
目的测试电热蚊香液加热时间与芯棒中拟除虫菊酯残留量的关系。
3·This article summarizes the difference of pyrethroid isomers in degradation and chiral stability from aspects as cis-trans isomers and optical isomers.
从顺反异构体、光学异构体两方面对拟除虫菊酯异构体的降解差异及稳定性差异进行了综述。
4·Results Pyrethroid residue in mandril increased by 400% and porosity reduced by 45% after heating electrothermal vaporizing liquid.
结果电热蚊香液在加热后期芯棒中的拟除虫菊酯残留量增加400%，孔隙率降低45%。
5·Pyrethroid pesticides are mainly used in killing pests in cotton, vegetable, fruit and tea trees, public health and also in killing parasites in fish.
拟除虫菊酯杀虫剂主要用于防治棉田、菜地、果树和茶叶上的农业害虫以及卫生害虫，也用于渔业生产上杀灭寄生虫。