... open-circuit crushing 开路破碎 opencut mining 露天开采 open-end method 敞开进路式矿柱回采法 ...
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opencut mining area 露天矿开采境界
opencut mining design 露天开采设计
opencut mining machinery 露天采煤机械
opencut coal mining technology 露天采煤技术
opencut coal mine mining 露天煤矿开采
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。
The paper puts forward 5 types of the geological hazards happened in Fushun coalfield:1. slope deformation caused by opencut mining;
抚顺煤田开采诱发的地质灾害有5种主要形态类型：露天开采导致的边坡变形；
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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