drill pipe tension
... 钻杆立根：drill-pipe stand,stand of drill pipe 钻杆拉力：drill pipe tension 钻杆接头台肩：shoulder of tool joint ...
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旋转和机架组件用于向钻杆施加旋转、推进和回拉力。
The rotary and carriage assembly is adapted to apply rotational, thrust and pull-back forces to the drill pipe.
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