pyrethrin

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  

英汉

英英

网络释义

n.
1.
【化】除虫菊酯

例句

释义:
全部全部,除虫菊酯除虫菊酯,除虫菊素除虫菊素,除虫菊精除虫菊精,除虫菊酯类除虫菊酯类
类别:全部全部,口语口语,书面语书面语,标题标题,技术技术
来源:全部全部,字典字典,网络网络
难度:全部全部,简单简单,中等中等,难难
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。
www.qiyeku.com
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。
www.fabiao.net
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。
v2basea1.flashcdnline1.com
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。
ip.com
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。
wf1504.blog.163.com
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。
www.fabiao.net
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。
www.dictall.com
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
www.ilib.cn
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；
www.fabiao.net
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
service.ilib.cn