pyrethrins

美 　英

• n.【化】除蟲菊酯
• 網(wǎng)絡除蟲菊素；除蟲菊精；除蟲菊酯類

詞形變化

復數(shù)：pyrethrins  

英漢解釋

n.	1. 【化】除蟲菊酯

英英解釋

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.

除蟲菊花含有除蟲菊酯對昆蟲有很強的觸殺，胃毒。

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

印楝素、除蟲菊素和魚藤酮對非靶標生物的毒性較高，尤其對家蠶風險性大。

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

將近90%的殺蟲劑都含有除蟲菊酯或者蟲菊酯或者兼而有之。

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

本發(fā)明為天然除蟲菊素花粉劑及制備方法。

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

驅蟲寵物：氯菊酯和除蟲菊制訂寵物，可作為驅蟲劑，以保護你的狗。

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

目的擬除蟲菊酯類農藥是70年代迅速發(fā)展起來的新型農藥，最初是在除蟲菊這種植物中提取出來的。

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

目的觀察殺蟲劑天然除蟲菊素對印鼠客蚤實驗室的殺滅效果。

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

反相高效液相色譜分離純化天然除蟲菊酯

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

對家蠶急性毒性等級：除蟲菊素為劇毒，印楝素和魚藤酮為高毒，苦參堿和蛇床子素為低毒；

Experimental study on the solubility of pyrethrins in supercritical carbon dioxide

除蟲菊酯在超臨界二氧化碳中溶解度的研究

Progress in detecting natural pyrethrins in Chrysanthemum cinerariifolium

天然除蟲菊酯檢測方法的研究進展

The Characteristic and Mechanism of Pyrethrins Acting on Pests

除蟲菊素的殺蟲特性與作用機理

Piperonyl butoxide and pyrethrins as components of bags

作為袋子組分的增效醚和除蟲菊酯

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

對斑馬魚的急性毒性等級：印楝素和魚藤酮為劇毒，除蟲菊素為高毒，苦參堿和蛇床子素為低毒；

Analytical Method for Pyrethrins in Natural Extracts by GC-MS

天然除蟲菊素母藥中主要成分質譜分析研究

The Quantitative Analysis of in Common Use Pyrethrins - pespieide

常用菊酯類農藥的定量分析