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pyrethrins

美英

n.【化】除虫菊酯
网络除虫菊素；除虫菊精；除虫菊酯类

复数：pyrethrins

pyrethrins

pyrethrins

英-汉英-英网络释义

pyrethrins

n.

1.【化】除虫菊酯

1

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。

2

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。

3

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。

4

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。

5

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。

6

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。

7

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。

8

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

9

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；

10

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

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