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鼠害防治阈值
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鼠害防治阈值
Encyclopedia
农学
鼠害防治
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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。
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environmental regionalization map
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environmental requirements for origin of non-environmental pollution aquatic products
Environmental Research
environmental reservoir
environmental resistance of composites
environmental resources planning system
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更新时间:2025/12/19 16:33:53