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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。
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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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