“geochemical grade of soil environment”的概念、定义、翻译、参考文献-科学参考

单词	geochemical grade of soil environment
释义	geochemical grade of soil environment Encyclopedia 理学多目标地球化学调查释 geochemical grade of soil environment土壤环境地球化学等级依据土壤中重金属元素、有机污染物指标的含量水平及土壤环境质量标准而划分出的环境地球化学等级。
随便看	sigma bond sigma bond metathesis sigma-compactness sigma-compact set sigma-compact space sigma-complete sigma-complete ideal sigma-complete lattice sigma-completeness sigma complete vector lattice sigma complex sigma discrete family sigma-discrete family sigma electron sigma field sigma-field sigma field of events sigma-field of events sigma-field of sets sigma field prior to tau sigma-field prior to tau sigma-field prior to τ sigma-field strictly prior to τ sigma-finite sigma finite measure

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