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鼠害防治阈值
释义
鼠害防治阈值
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。
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congruence arithmetic
congruence axiom
congruence by dissection
congruence by ideal
congruence class
congruence-distributive algebra
congruence distributivity
congruence equation
congruence-free condition
congruence-free semigroup
congruence function
congruence group
congruence in many variables
congruence kernel
congruence kernel of a homomorphism
congruence lattice
congruence method
congruence-modular algebra
congruence modularity
congruence modulo a double modulus
congruence modulo a prime
congruence of angles
congruence of conics
congruence of curves
congruence of figures
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