... non-conforming existing use 不符规划现有用途 non-existing model environment 非现有模型环境 T Discourse of non-existing 传统金属 ...
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In narrating the base of idea and characteristic of non-point pollution, the existing condition of model research of non-point pollution in agricultural environment at home and abroad is discussed.
在阐述非点源污染的概念、特点的基础上，对国内外农业环境非点源污染模型研究现状进行了综述。
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