杀虫剂的

I have decided to specialize in plant chemicals that can be used for insecticides.

我已经下决心专门研究可以用作杀虫剂的植物中的化学物质。

Methods iv instar larve of cx.pipiens pallenswere treated with propoxur at the dose of lc 50 in each generation and remaining survival larrae were fed under laboratory conditions.who bioassay was employed for detection of resistance of mosquitoes.

在实验室条件下，用残杀威以lc 50 的剂量处理iv龄幼虫，选育残杀威抗性品系。按照who生物测定法，测定抗残杀威品系对多种杀虫剂的敏感性。

Quantity of systemic insecticides in cotton seeding was analysed at regular intervals, and the effect on cotton aphid control was surveyed.

用涂茎、喷雾和拌种3种方法施药，定时采样测定棉苗中内吸杀虫剂的数量动态及调查对棉蚜的控制作用。

This article discusses the structure of pyrethroid insecticides development process, mechanism, the use of methods and research directions.

科技论文摘要急求翻译！！！本文主要论述了拟除虫菊酯杀虫剂的结构开发历程，作用机制，使用方法及研究的方向。

Pesticide use and application shall be restricted to trained operatives and shall be controlled to avoid product safety hazards.

杀虫剂的使用和申请必须严格限制，要由受过训的熟练员工执行。同时必须控制以避免对产品造成危害。

Both wine and tea are susceptible to odours if stored, for example, near a strong detergent or insecticide.

葡萄酒和茶都对存贮空间有严格的要求，如果放置于清洁剂与杀虫剂的附近，葡萄酒和茶很容易变味。

Methods The method of the residual film in glass tube with 3 h exposure to insecticides was employed for determining toxicity of insecticides to both wheat aphid species, which were originally collected from different provinces of China during 2005-2007 and reared on wheat seedlings in the laboratory for more than 30 generations.

方法］从田间采集麦蚜在实验室内饲养30代以上，利用玻璃管药膜法测定其对杀虫剂的敏感度，每条毒力基线为2次以上独立测定数据合并后的计算结果。

Methods The natural housefly population collected in fields were fed in the lab and their sensitivities of different generation (from F1 to F21) to three insecticides (cypermethrin, deltamethrin, and Dichlorvos) were bioassayed with the serial dilution spotting procedure.

将野外采集的家蝇自然种群在实验室进行正常饲养，用点滴法测定其不同世代（F1~F21代）对氯氰菊酯、溴氰菊酯和敌敌畏3种杀虫剂的敏感性。

But, as scientists have learned through the study of DDT and other pesticides, it may be necessary to protect plant and animal life in order to protect people.

但是，就像科学家从DDT和其他一些杀虫剂的研究中所认识到的，要保护人类，必须对动植物也进行保护。

The results indicated that insecticides could lead to quality and quantity chang es in resistant houseflies .

杀虫剂的作用可使抗性家蝇体内的蛋白在质和量上发生改变。

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。