名词
中文翻译：钻头
同义词：
['drill rod', 'drill shaft例句：1. The engineer used a drilling spindle to bore holes in the rock.（工程师使用钻头在岩石中钻孔。）']
例句：
-
1. The engineer used a drilling spindle to bore holes in the rock.
工程师使用钻头在岩石中钻孔。
-
2.The drilling spindle was essential for the construction of the tunnel.
钻头对于隧道的建设至关重要。
-
3. The drilling spindle was so sharp that it could easily penetrate through the thickest layer of concrete.
钻头非常锋利，可以轻松穿透最厚的混凝土层。