- 双语例句 更多例句
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.
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Confine the use of insecticides to the evening and do not spray plants that are in flower.
只在晚间使用杀虫剂，而且不要对正在开花的植物喷药。
《柯林斯高阶英汉双解学习词典》
In remote regions, the air is pure and the crops are free of poisonous insecticides.
在偏远地区，空气很纯净，庄稼也不施用有毒的杀虫剂。
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Spraying with insecticides and fungicides may be necessary to control any insects and diseases.
也许有必要喷洒杀虫剂和杀菌剂以防止病虫害.
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Plants provide many chemicals that can be useful to humans, especially for drugs and insecticides.
植物能为人类提供有用的化学物质, 特别是药物和杀虫剂.
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Methods: We measure the LD of flies on insecticides standard drop way.
方法: 采用点滴法测定家蝇对杀虫剂的半数致死量.
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They are insects'worst enemies, killing far more pests than commercial insecticides do.
它们是昆虫的死敌, 杀灭害虫的能力要比作为商品的杀虫剂大得多.
百科语句
A group of insecticides called chlorinated hydrocarbons illustrate this effect.
一大批称为氯化烃的杀虫剂阐明了这种放大作用.
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The control of cucurbit wilt has been based on chemical insecticides applied for beetle control.
防治葫芦科植物萎蔫病,至今仍依靠使用化学药剂防治甲虫.
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- 相关词组
- carbamate insecticides氨基甲酸酯类杀虫剂;
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