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farmland pollution
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farmland pollution
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farmland pollution
农田污染
由于生产活动导致重金属以及一些难以除去的其他有毒物质进入农田,使得农田土壤中某些污染物指标超过国家农田土壤环境质量标准,或农作物中某些污染物指标超过国家农产品质量标准而导致农产品质量下降、农田生产力降低,甚至生态环境遭到破坏的现象。
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equiconjugate
equiconjugate diameter
equiconsistent axiom system
equicontinuity
equicontinuous
equicontinuous basis
equicontinuous convergence
equicontinuous family
equicontinuous semigroup
equicontinuous sequence
equicontinuous set
equiconvergence
equiconvergence theorem
equiconvergent
equiconvergent sequences
equiconvergent series
equiconvex
equicorrelated
equicross
equidecomposability
equidecomposable
equidecomposable polyhedron
equidecomposable set
equidensen
equidensite
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