pyrethrins中文是什么意思

• 除虫菊精
• 除虫菊素
• 除虫菊酯

• pyrethroid    合成除虫菊酯; 拟除虫菊酯; 莨菪烷
• pyrethrinamaroid    除虫菊酯一苦味质
• pyrethroid insecticides    拟除虫菊酯杀虫剂
• pyrethrin with piperonyl butoxide    除虫菊酯-胡椒基丁醚
• pyrethroids    合成除虫菊酯类
• pyrethrin ii    除虫菊素ii
• pyrethrol    除虫菊醇
• pyrethrin i    除虫菊素i
• pyrethrolone    除虫菊醇酮
• pyrethrin    n. 【化学】除虫菊酯。

• Method for the determination of pyrethrins residuesin cereals for export
  出口粮谷中天然除虫菊素残留量检验方法
• Pyrethrins and pyrethroids are usually applied as space spray i . e . by fogging to kill mosquitoes in contact
  拟除虫菊酯通常以喷雾方式作空间处理，直接杀死接触到药雾的蚊子。
• Natural pyrethrins is a botanical insecticide made from extracts of chrysanthemum flowers while pyrethroids such as s - bioallethrin , cypermethrin , permethrin and cyfluthrin are its synthetic chemical analogues
  天然除虫菊素是一种从菊花提炼的植物性杀虫剂，而拟除虫菊酯是类似天然除虫菊