“atmospheric pollution in agricultural area”的概念、定义、翻译、参考文献-科学参考

单词	atmospheric pollution in agricultural area
释义	atmospheric pollution in agricultural area Encyclopedia 农学农产品产地环境释 atmospheric pollution in agricultural area农区大气污染在从事农、林、牧、渔等各种农业生产的区域，由于人为或自然的原因，大气中一些物质的浓度超过了正常水平而对人类、生态、材料或其他环境要素产生不良效应的现象。
随便看	ordered class ordered class of subobjects ordered collection ordered complex ordered couple ordered cycle ordered direct product ordered direct sum ordered estimate ordered extension ordered factor group ordered factorization ordered field ordered field extension ordered geometry ordered grammar ordered group ordered groupoid ordered incidence structure ordered integral domain ordered linear space ordered list ordered module ordered monoid orderedness

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