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道路防护林
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道路防护林
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道路防护林
释
road protection forest
道路防护林
在公路、铁路、乡村道路、农田机耕路等道路两侧营造的用于净化空气、减少道路交通噪声污染以及改良土壤的林带。
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backward derivative function
backward difference
backward difference operator
backward difference quotient
backward differentiability
backward differential equation
backward differentiation formula
backward Dini derivative
backward effects
backward elimination
backward equation
backward error
backward error analysis
backward Euler method
backward induction
backward interpolation
backward interpolation formula
backward Kolmogorov differential equations
backward movement
backward operator
backward parabdic equation
backward parabolic equations
backward production capacity
backward reachability
backward reaction
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