同义词: chemical defense
chemical weapon defence化学武器防护
chemical-defence medicine防化医学
Chemical defence terms防化术语
chemical defence protective防化装备
Chemical Defence on Ships舰船防化
ship chemical defence舰艇防化学
chemical defence corp防化兵
institute of chemical defence防化研究所
chemical defence specialized team防化专业队
They are not the nutrient substance. They take part in the chemical defence of plants.
对于昆虫,它们是非营养性物质:对于植物,它们具有对昆虫进行化学防御的生态功能。
参考来源 - 柘叶[Cudrania tricuspidata (Carr.)Bur.]饲养对家蚕抗性生理影响的研究