“长江河道采砂管理”的概念、定义、翻译、参考文献-科学参考

单词	长江河道采砂管理
释义	长江河道采砂管理 Encyclopedia 工学河道湖泊管理释 management of sand mining in Yangzi river长江河道采砂管理规范长江河道采砂行为的管理工作。
随便看	variation of a sample 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

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