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关注:1
2013-05-23 12:21
求翻译:Nowadays, rotary blasthole drilling machines were used in surface mines and in large size quarries for drilling the soft and medium-hard formations是什么意思?![]() ![]() Nowadays, rotary blasthole drilling machines were used in surface mines and in large size quarries for drilling the soft and medium-hard formations
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2013-05-23 12:21:38
如今,回转式爆破钻孔机用于露天矿和大型采石场钻软,中,硬地层
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2013-05-23 12:23:18
现今,转台式blasthole钻床用于地表矿山和在大号猎物为操练软和媒介坚硬形成
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2013-05-23 12:24:58
现今,转台式blasthole钻床用于表面矿和在大号猎物为钻井软和medium-hard形成
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2013-05-23 12:26:38
如今,旋转炮孔钻孔机用于在露天矿山和大型采石场软、 中硬地层钻进
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2013-05-23 12:28:18
目前,腐坏的爆破孔条播机用于表面的矿和在大大小为了钻软和中等困难的构成物费力地找
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