A great deal of dust and poisonous gas produced in the process of opencut mining pollutes the environment seriously.
露天开采过程中产生大量的粉尘和有害气体，严重污染了环境。
Defining opencut mining area is the key link of opencut design and construction. Defining final mining area is equal to defining the mining and stripping quantity.
圈定露天矿开采境界是露天矿设计和建设的重要环节。
Defining opencut mining area is the key link of opencut design and construction. Defining final mining area is equal to defining the mining and stripping quantity.
圈定露天矿开采境界是露天矿设计和建设的重要环节。
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