Drill pipe is attached to the far side of the reamer so that it can be pulled back from the near side, once the pre-reaming operation is complete.
扩孔器远侧与钻杆相连，当预扩孔作业完成后，可以将扩孔器从近侧拖回到远侧。
Combined with theory, we thought of the respond work principle to emergency, pre - arranged planning, drill and related policy.
文章结合理论，对企业在突发事件中应对媒体的工作原则和应对突发事件的预案、演练及相关策略进行思考。
Hydrofracturing in situ stress measurements were used to determine in situ stress states of two drill holes for the pre-feasibility study of an underground reservoir at an engineering site in China.
本文运用水压致裂地应力测量方法，对我国某地下油库预可行性研究工程场区两个钻孔进行了地应力测量。
Hydrofracturing in situ stress measurements were used to determine in situ stress states of two drill holes for the pre-feasibility study of an underground reservoir at an engineering site in China.
本文运用水压致裂地应力测量方法，对我国某地下油库预可行性研究工程场区两个钻孔进行了地应力测量。
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