“water quality standard for farmland irrigation”的概念、定义、翻译、参考文献-科学参考

单词	water quality standard for farmland irrigation
释义	water quality standard for farmland irrigation Encyclopedia 农学农业水土工程释 water quality standard for farmland irrigation《农田灌溉水质标准》为了防止土壤、地下水和农产品污染，保障人体健康，维护生态平衡而制定的对灌溉水质的总要求。
随便看	variation of a set variation of a univalent function variation of a vector measure variation of behavior of invasive species variation of constants variation-of-constants formula variation of earth rotation variation of elements variation of fruit crops variation of functional variation of geomagnetic field variation of Hodge structure variation of latitude variation of life history traits of invasive species variation of Moon variation of parameters variation of physical constants variation of sign variation of the function variation of the moon variation orbit variation-parametric method variation principle variation statistics variation vector field

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