杀虫剂的一种

Biochemistry: Cholinesterase inhibitor. Mode of action: Systemic insecticide and acaricide with contact and stomach action.

作用特点是一种内吸性杀虫剂，可以有效地杀死多种害虫的卵、幼虫和成虫。

Any of various nematode worms of the family Ascaridae,which includes the common intestinal parasite Ascaris lumbricoides.

蛔虫一种蛔虫科的线形虫，包括一般的肠内寄生虫蚓状蛔虫属农民在苹果树上喷杀虫剂以灭虫。

The problem, of course, is to find an insecticide that kills only the elderly.

这其中的难题，当然，就是去找到一种杀虫剂，能够只杀死那些年长。

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。

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

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。

A bitter compound used as an insecticide and tonic 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。

A bitter compound used as an insecticide and tonic 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

Hexachlorocyclohexane is a broad spectrum insecticide still used in some of the developing countries, though developed countries have banned or curtailed its use.

六六六是一种广普的杀虫剂，尽管发达国家已经禁止或限制，却一直在发展中国家应用。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷