pyrethrins

pyrethrins

美 　英

• n.【化】除虫菊酯
• 网络除虫菊素；除虫菊精；除虫菊酯类

词形变化

复数：pyrethrins  

英汉解释

n.	1. 【化】除虫菊酯

英英解释

n.	1. either of two oily liquid complex organic compounds.

例句

Pyrethrum flowers contain pyrethrins on insects have a strong contact toxicity, stomach toxicity.

除虫菊花含有除虫菊酯对昆虫有很强的触杀，胃毒。

Azadirachtin, Pyrethrins and Rotenone are toxic to non-target organisms, especially high risk for Bombyx mori Linaeus.

印楝素、除虫菊素和鱼藤酮对非靶标生物的毒性较高，尤其对家蚕风险性大。

Nearly 90% of exposures involved insecticides containing pyrethroids, pyrethrins or both.

将近90%的杀虫剂都含有除虫菊酯或者虫菊酯或者兼而有之。

The invention provides natural pyrethrins pollen and the preparation method thereof.

本发明为天然除虫菊素花粉剂及制备方法。

Repellents for pets: Permethrins and pyrethrins formulated for pets can be used as repellents to protect your dog.

驱虫宠物：氯菊酯和除虫菊制订宠物，可作为驱虫剂，以保护你的狗。

OBJECTIVE: Pyrethrins is a new type pesticide that had developed rapidly in 1870s. It was refined from the plant at first.

目的拟除虫菊酯类农药是70年代迅速发展起来的新型农药，最初是在除虫菊这种植物中提取出来的。

Objective To observe the efficacy of Pyrethrins against Xenospylla cheopis in the laboratory.

目的观察杀虫剂天然除虫菊素对印鼠客蚤实验室的杀灭效果。

Separation and Purification of Natural Pyrethrins by Reversed Phase High Performance Liquid Chromatography

反相高效液相色谱分离纯化天然除虫菊酯

on Bombyx mori Linaeus are: Pyrethrins is hyperoxic, Azadirachtin and Rotenone are highly toxic, Matrine and Cnidiadin are low toxic;

对家蚕急性毒性等级：除虫菊素为剧毒，印楝素和鱼藤酮为高毒，苦参碱和蛇床子素为低毒；

Experimental study on the solubility of pyrethrins in supercritical carbon dioxide

除虫菊酯在超临界二氧化碳中溶解度的研究

Progress in detecting natural pyrethrins in Chrysanthemum cinerariifolium

天然除虫菊酯检测方法的研究进展

The Characteristic and Mechanism of Pyrethrins Acting on Pests

除虫菊素的杀虫特性与作用机理

Piperonyl butoxide and pyrethrins as components of bags

作为袋子组分的增效醚和除虫菊酯

on Brachydonio rerio are: Azadirachtin and Rotenone are hyperoxic, Pyrethrins is highly toxic, Matrine and Cnidiadin are low toxic;

对斑马鱼的急性毒性等级：印楝素和鱼藤酮为剧毒，除虫菊素为高毒，苦参碱和蛇床子素为低毒；

Analytical Method for Pyrethrins in Natural Extracts by GC-MS

天然除虫菊素母药中主要成分质谱分析研究

The Quantitative Analysis of in Common Use Pyrethrins - pespieide

常用菊酯类农药的定量分析