一种杀虫剂

It was his creation of an insecticide mainly used as a fumigant in grain stores that was responsible for the deaths of an estimated 1.2 million people.

他发明的一种主要用作粮仓熏剂的杀虫剂造成了约120万人死亡。

Lemon balm is a fragrant oil that is often used in warding of pests or insects in the garden or in herbal insect repellents.

柠檬香蜂草是一种芬芳的精油，经常用于花园中防御有害物或昆虫，或者用于草本植物杀虫剂。

Objective To detect the resistance of Musca domestica in various habitats in early phase with the method of acetylcholinesterase. Methods The traditional assay method and acetylcholinesterase were used to detect the resistance of M.

目的 应用一种家蝇抗药性早期检测方法即乙酰胆碱酯酶法，了解南昌市不同生境家蝇对常用的有机磷和氨基甲酸酯类杀虫剂的抗性现状及其发展趋势。

A newish and very effective drug called artemesinin is now being deployed, and the campaign to distribute insecticide-laced bed nets through large parts of Africa is also showing signs of success.

一种稍新且疗效很好的药现在已经投入了研制过程，这种药叫做青蒿素，而且将喷射过杀虫剂的蚊帐派送到非洲大部分地区的预防活动也颇具成效。

RESULTS: Reproductive toxicity: with the increase of the administered MXC dose, the nidation quantity decreased, the AGD in the male foetuses exhibited shorter than that in the controls, and the concentrations of E2 and P in sera went up.

甲氧滴滴涕(methoxychlor，MXC)作为一种替代滴滴涕的有机氯杀虫剂，其杀虫效果明显，而生物毒性相对较低，因而在全球范围内得到广泛应用。

A nonpersistent organophosphorous pesticide ,C4H7O4Cl2P,of low toxicity to human beings.

二氯松一种非持久性有机磷杀虫剂，C4H7O4Cl2P，对人的毒性低

This work is one of the most important bases of eliminating locusts. Studying the oogenesis of insects has important significance on demonstrating the reproductive mechanism and controlling locusts" fertility. At the same time, it"s an important means of studying the forecast of pests and the law of occurrence. It can reveal the law of ovipositing and explain the physiological basis of pests" occurrence, thus design "biorational insecticide.

研究昆虫的卵子发生对于阐明昆虫的生殖机理和控制繁殖具有重要的实践意义，是研究害虫预测预报和发生规律的一种重要手段，同时可以揭示昆虫大量产卵的规律，阐明害虫大发生的生理基础，从而设计出"生物合理的杀虫剂"，并为促进有益昆虫的大量繁殖提供理论依据。

A white crystalline powder,C6H6Cl6,used chiefly as an agricultural pesticide but also used to pically in the treatment of scabies and pediculosis.

六氯化苯一种白色晶状粉末，C6H6Cl6，主要用于农业杀虫剂，也局部的用于疥疮和生虱子的治疗

A white crystalline powder,C6H6Cl6,used chiefly as an agricultural pesticide but also used topically in the treatment of scabies and pediculosis.

六氯化苯一种白色晶状粉末，C6H6Cl6，主要用于农业杀虫剂，也局部的用于疥疮和生虱子的治疗

And vermifuge; extracted from the wood an bark of trees of the genera Quassia and Picrasma.

一种味苦的化合物，用作杀虫剂，从苦木属树木木材和树皮中提取。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。