英语释义

1. any of various synthetic compounds that are related to the pyrethrins and resemble them in insecticidal properties

2. any of various synthetic compounds that are related to the pyrethrins and resemble them in insecticidal properties

片语

Pyrethroid preparation菊酯类制剂

pyrethroid library菊酯化合物库

PYRETHROID STANDARD拟除虫菊酯标準混合物

Pyrethroid acid拟除虫菊酸

Pyrethroid compounds醚菊酯类似物

pyrethroid pesticides拟除虫菊酯类农药

pyrethroid insecticides拟除虫菊酯类杀虫剂

pyrethroid py拟除虫菊酯

Pyrethroid residues菊脂类杀虫剂残余

英汉例句

• a solid phase extraction(spe)-gas chromatography(gc)-negative chemical ionization mass spectrometry(nci/ms) method was proposed for analyzing 11 kinds of pyrethroid pesticides in tea.

  通过固相萃取-气相色谱-负化学离子源质谱技术建立了11种拟除虫菊酯类农药残留的检测方法，并应用于茶叶农残检测。

• objective:to investigate the role of esterase in pyrethroid resistance of housefly.

  目的：研究拟除虫菊酯对家蝇的抗性机制。

• recent study shows that target site (sodium channel)insensitivity emerged as one of the most important pyrethroid resistance mechanisms in many insect species.

  钠通道结构的改变，是拟除虫菊酯类杀虫剂毒理的主要基础，也是产生抗药性的基础。

• our results indicated that l925i mutation was tightly associated with pyrethroid resistance in the tobacco whitefly from nanjing.

  该结果表明了烟粉虱钠离子通道l925i突变与对拟除虫菊酯抗性密切相关。

• the development of enzyme immunoassays for the determination of pyrethroid residues were reviewed, including hapten design, antibody preparation, and immunoassay establishment and applications.

  并对拟除虫菊酯类农药通用免疫半抗原设计及多残留酶免疫分析技术的发展趋势进行了探讨。

• the invention provides a novel pyrethroid compound having the following structural formula (x), a preparation method of the compound and application thereof in sanitary desinsection products.

  本发明提供一种具有以下结构式（x）的新颖的拟除虫菊酯化合物，以及该类化合物的制备方法及其在卫生杀虫产品中的应用。

• objective:to know the killing effect of pyrethroid preparation against cockroach;

  目的：了解拟除虫菊酯类制剂杀灭蟑螂的效果；

• it is pointed out that non-ester pyrethroid would has a great develop potentialities as new type pyrethroid insecticides.

  指出非酯类拟除虫菊酯作为新一代拟除虫菊酯杀虫剂，具有很大的发展潜力。

• dichlorochrysanthemate is the important intermediate of pyrethroid insecticides.

  二氯菊酯是拟除虫菊酯杀虫剂的重要中间体。

• obiective test the relationship between the heating time of electrothermal vaporizing liquid and the residues of pyrethroid in mandril.

  目的测试电热蚊香液加热时间与芯棒中拟除虫菊酯残留量的关系。

• the design and synthesis of a new pyrethroid is described. this new compound has a simple structure and light stability. it is easy to synthesis.

  本文报道了一种新的拟除虫菊酯分子的设计及合成，这种新化合物具有结构简单、光稳定性好和易合成的特点。

• but with time past, the resistance of pest to the pyrethroid is found to develop quickly as well as its extension application scale.

  目前的研究表明尽管使用拟除虫菊酯防制昆虫见效快，但其对昆虫产生抗性的速度也快。

• the combined application of s101 and organophate or pyrethroid insecticides had obvious synergism to pest insects, its toxicity to mammalian was not increased.

  s101与有机磷、拟除虫菊酯类杀虫剂复配防治害虫有增效作用，对动物不增毒。

• pyrethroid pesticides are mainly used in killing pests in cotton, vegetable, fruit and tea trees, public health and also in killing parasites in fish.

  拟除虫菊酯杀虫剂主要用于防治棉田、菜地、果树和茶叶上的农业害虫以及卫生害虫，也用于渔业生产上杀灭寄生虫。

• the gas chromatographic method was reported for the analysis of pyrethroid pesticide residues in water.

  本文介绍了气相色谱法测定水中五种拟除虫菊酯农药的多残留分析方法。

• objective:to establish a method for detecting the 20 organochlorine and pyrethroid pesticide residues in radix paeoniae alba.

  目的：建立白芍中20种有机氯和拟除虫菊酯类农药的检测方法。

• this article summarizes the difference of pyrethroid isomers in degradation and chiral stability from aspects as cis-trans isomers and optical isomers.

  从顺反异构体、光学异构体两方面对拟除虫菊酯异构体的降解差异及稳定性差异进行了综述。

• results pyrethroid residue in mandril increased by 400% and porosity reduced by 45% after heating electrothermal vaporizing liquid.

  结果电热蚊香液在加热后期芯棒中的拟除虫菊酯残留量增加400%，孔隙率降低45%。