杀虫剂的

And the compared efficacy test was executed between extract of pyrethrum and other several normal synthetic insecticide.

中提取天然除虫菊提取物，与常用的几种化学合成杀虫剂对比，进行药效试验。

An insecticide derived from a plant, e.g. pyrethrum.

3来源于植物的杀虫剂，例如除虫菊。

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

The rsistance of house flys were relative to the using frequency and dose of insecticides.

家蝇抗药性水平的高低，与化学杀虫剂用量大小和使用频率高低密切相关。

Early rotenone rotenone people from such plants are separated from the insecticidal activity of a substance, is one of three traditional plant-derived pesticides.

鱼藤酮是早期人们从鱼藤属等植物中提取分离出来的一种有杀虫活性物质，是三大传统植物性杀虫剂之一。

If you are fortunate enough to have well-drained soil, you would not have to worry about spraying.

如果你很幸运地住在排水良好的干燥土地周围，那么你就不需为喷洒杀虫剂担心了。

In the modem era, the general measures to control thisdisease is using stibine sodium gluconate for treatment of patients or catching andkilling the infected dogs to control infective agent; the second is killing sandfly tobreak the rout of transmission.

目前，对内脏利什曼病采取的主要控制措施仍然是使用葡萄糖酸锑钠等药物治疗病人或捕杀病犬以控制传染源，其次是使用驱虫剂或杀虫剂避免被传播媒介白蛉叮咬。

Chinese people repelled mosquitoes by burning tansy and composite family plants 1000 years ago. This might be the earliest hygienic insecticides application.

中国人早在1000多年前就用燃烧艾蒿，菊科类植物来驱赶蚊虫，这是我国较早使用的卫生杀虫剂。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。