双语例句权威例句
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The paper analyses each parts of rotary mechanism of rotary drill rig.
本文针对钻机回转机构的各零部件进行一定分析。
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It is a walking-frame rotary drill rig, suitable for industrial and civil piling construction.
该机是适应于工业与民用建筑桩基础施工的步履式螺旋钻机。
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The rotary drill stem will engender direction drift in rotary drilling of directional well and cluster well.
在定向井及丛式井的转盘钻进中，旋转钻柱会产生方位漂移。
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