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植物源杀虫剂
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植物源杀虫剂
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农学
植物源杀虫剂
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botanical insecticides
植物源杀虫剂
利用从具有杀虫特效的植物中提取的有效成分制成的药剂。又称植物杀虫剂、生物农药。是在对一些植物所具有的杀虫活性及其具有杀虫活性的有效成分研究的基础上发展起来的绿色、安全农药。
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chief administrative officer to manage river affairs
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chiefdom
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chief executive accountability system
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Chief Finance Officer
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chief knowledge officer,CKO
Chief Military Command
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