大型露天矿

  • 网络large-sized open-pit mine

大型露天矿大型露天矿

大型露天矿

large-sized open-pit mine

... ) Oversize open pit 特大型露天矿 ) large-sized open-pit mine 大型露天矿 ) deep open-pit coal mine 深大型露天煤矿 ...

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