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drilling boring

网络钻探

drilling boring

drilling boring

drilling boring

钻探

地质词典_李彦_新浪博客 ... 钻探工程 exploration engineering 钻探 drilling boring 岩芯钻探 core drilling ...

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The end, the drilling boring cars to meet the level of layered filling mining bear-hole, hole-cutting, geophysical hole .

最终使凿岩钻车可满足水平分层充填采矿打上采孔、切采孔、物探孔。

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drilling boring and slotting milling machine

钻镗插铣床

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Hydraulic System of the Drilling, Boring Combination Lathe Based on Plug-in Valve

基于插装阀的钻、镗组合机床液压系统

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