名词
中文翻译：钻杆
同义词：
['bit shaft', 'drill shank例句：1. The drill shaft was too short to reach the core.（钻头轴太短，无法到达核心。）']
例句：
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1. The drill shaft was too short to reach the core.
钻头轴太短，无法到达核心。
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2. The drill shaft was damaged during the drilling process.
在钻孔过程中，钻头轴受损了。
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3.The drill shaft was used to bore a hole in the rock.
钻头轴被用来在岩石中钻出一个洞。