露天矿穿孔
- 网络open pit drilling; drilling in surface mining
露天矿穿孔露天矿穿孔
open pit drilling
... 06 凿岩钻车自动化 jumbo automation 07 露天矿穿孔 open pit drilling 08 钻孔角度差 angular deviation in drilling ...
drilling in surface mining
... chemical processing of celestite 锶矿化学加工 drilling in surface mining 露天矿穿孔 structure of ore field 矿田构造 ...