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A new typal insecticide, its generation, physical and chemical properties, insecticidal mechanism, insecticidal characteristic and synthesis of diflubenzuron are introduced.

介绍了新型杀虫剂──除虫脲的发现、理化性质、杀虫机理、杀虫特点方法。

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According to the author's experience in the control of cotton aphids.the systemic insecticidal action of Systox was different when it was applied at different times of the day.

正>在与贫中农一起用1059(内)治棉蚜的多次生产实践中作者曾经注意到,一天之内不同时间喷药,药效有差异,傍晚喷药药效较好。

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CLC, CLD, CLE, CLEA, cleading, clean, clean bill of health, clean bomb, clean cut, clean house,

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3G, 401(K), a,

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In this case, the next step would be to use a pest control called insecticidal soap.

况下,下一步就要使用一叫做杀虫肥皂的害虫控制方法。

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TED-Ed(频版)

Many of the plant molecules that humans have adopted as drugs, medicines and seasonings evolved as part of plants' immune systems because they're antimicrobial, or insecticidal.

许多被人类用作药、药和调味品的分子是作免疫系统的一部分进化而来的,因它们具有抗菌或杀虫作用。

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cleaner, cleaner-elevator, cleaner-grader, cleaner-loader, cleaners, cleaner's, cleaner-separator, cleaness, clean-faced, clean-fingered,

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3G, 401(K), a,
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