Taper the plug off a bit with the chisel so that it will fit into the hole.

用凿子把塞子的一头削掉一点，使它能塞进洞里。

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Taper the plug off a bit with a chisel so that it will sit into the hole.

用凿子把这塞子一头削尖点，使它能塞进孔里。

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Simultaneously, bit stability is enhanced using multiple bit stable structure design techniques such as deep inner taper, force balance and hybrid cutter arrangement etc.

同时，结合深内锥、力平衡、混合布齿等多种钻头稳定性结构设计技术，以增加钻头稳定性。

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