“threshold for rodent control”的概念、定义、翻译、参考文献-科学参考

单词	threshold for rodent control
释义	threshold for rodent control Encyclopedia 农学鼠害防治释 threshold for rodent control鼠害防治阈值当防治鼠害所需要投入的成本（费用）大于或等于害鼠造成危害的种群数量。是由作物（或其他）受害水平来确定的。
随便看	cone of a complex cone of a simplex cone of curvature cone of curves cone of experience cone of feasible directions cone of positivity cone of revolution cone of shortests cone of support cone penetration test cone-plane intersection cone-point cone preserving mapping cone-preserving mapping cone preserving operator cone-preserving operator cone prospecting cone quasi convex function cone quasi-convex function cone search cone semi-angle cone separator cone set cone shock

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