杀虫剂的

Part two, Three analogue compounds of actamiprid were synthesized by analogue synthesis method through the intermediates which have insecticide activity.

第二部分中，选取本身具有杀虫活性的基团取代吡虫清中的2-氯-5-氯甲基吡啶，采用"类同合成法"合成了3个烟碱类杀虫剂吡虫清的类似物。

In the forests of New Brunswick, for example, various pesticides have been sprayed in the past 25 years in efforts to control the spruce budworm, an economically significant pest.

例如，在NB的森林里，过去的25年里，多种杀虫剂被喷洒以控制云杉蚜虫，一种经济上严重的病害虫。

But if we start shifting back to non-Bt cotton, I promise you, the tobacco budworm will come back, and we don't want to be making foliar applications for resistant tobacco budworms, in addition to treating tarnished plant bugs.

像牧草盲蝽一样，叶螨对用来控制它们的杀虫剂正在产生抗性。过去15年以来，我们已经基本上翻倍了百治磷的使用率，乙酰甲胺磷的使用率则增至三倍。

By use of High Speed TLC Scanner,CS-920,was used to apply droplet of insecticide solution to the dorsum of the testinsect.

测定的结果表明东台及江浦两地田间的棉蚜已经对有机磷杀虫剂—乐果产生了较高的抗药性。

"Economically the world's most important bean, the soybean provides vegetable protein for millions of people and ingredient s for hundreds of chemical products, including paints, adhesives, fertilizers, insect sprays, and fire-extinguisher fluids."

为世界上最具经济价值的豆类，大豆为数百万人提供了植物性蛋白质的来源，并为数百种化学产品的原料，包括油漆、黏合剂、化肥、杀虫剂和灭火剂。

"Economically the world's most important bean, the soybean provides vegetable protein for millions of people and ingredients for hundred s of chemical products, including paints, adhesives, fertilizers, insect sprays, and fire-extinguisher fluids."

为世界上最具经济价值的豆类，大豆为数百万人提供了植物性蛋白质的来源，并为数百种化学产品的原料，包括油漆、黏合剂、化肥、杀虫剂和灭火剂。

"Economically the world's most important bean, the soybean provides vegetable protein for millions of people and ingredients for hundreds of chemical products, including paints, adhesives, fertilizer s, insect sprays, and fire-extinguisher fluids."

为世界上最具经济价值的豆类，大豆为数百万人提供了植物性蛋白质的来源，并为数百种化学产品的原料，包括油漆、黏合剂、化肥、杀虫剂和灭火剂。

"Economically the world's most important bean, the soybean provides vegetable protein for millions of people and ingredients for hundreds of chemical products, including paints, adhesives, fertilizers, insect sprays, and fire-extinguisher fluids."

为世界上最具经济价值的豆类，大豆为数百万人提供了植物性蛋白质的来源，并为数百种化学产品的原料，包括油漆、黏合剂、化肥、杀虫剂和灭火剂。

"Economically the world's most important bean, the soybean provides vegetable protein for millions of people and ingredients for hundreds of chemical products, including paints, adhesive s, fertilizers, insect sprays, and fire-extinguisher fluids."

为世界上最具经济价值的豆类，大豆为数百万人提供了植物性蛋白质的来源，并为数百种化学产品的原料，包括油漆、黏合剂、化肥、杀虫剂和灭火剂。

"Economically the world's most important bean , the soy bean provides vegetable protein for millions of people and ingredients for hundreds of chemical products, including paints, adhesives, fertilizers, insect sprays, and fire-extinguisher fluids."

为世界上最具经济价值的豆类，大豆为数百万人提供了植物性蛋白质的来源，并为数百种化学产品的原料，包括油漆、黏合剂、化肥、杀虫剂和灭火剂。

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。