Three-dimension underground mine workings的意思|示意
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三维地下巷道
Three-dimension underground mine workings的网络常见释义
三维井巷 ... mine workings link-up survey 井巷贯通测量 mine workings link-up survey 井巷贯通测量 Three-dimension underground mine workings 三维井巷 ; 三维井巷 ...