rotary drill line 钻井钢丝绳 ; 旋转钻井钢丝绳
rotary drill jumbo 回转式钻车 ; 旋转式钻车
hydraulic rotary drill 液压旋转钻机
oil field rotary drill 油田转盘钻机
rotary drill for shaft sinking 凿竖井用回式钻机
rotary drill with oil pressure 油压转盘钻机
high torque rotary drill 大转矩回转钻机
vibratory rotary drill 振动旋转钻井
rotary drill machine 旋转式钻机
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。
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。
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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