boring bit
... boring apparatus 钻孔设备 boring bit 钻孔钻头 boring master 钻孔工长 ...
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钻孔、钻头、钻床 Drill
蛀虫钻孔工人钻头 borer
钻埋头孔、钻锥口孔 Countersunk
端面钻中心孔的钻头 end-cutting core drill
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当钻头上下钻时，要把钻孔保持在中心。
Keep the drill centred in the borehole while it ascends and descends.
《柯林斯英汉双解大词典》
然后，钻孔机钻头压断了我的后背，我痛的几乎麻木了。
Then I felt the numbing pain of the auger bit crushing my back.
youdao
钻孔是用一个称为“钻头”的旋转刀具进行的。
Drilling is performed with a rotating tool called a drill.
应用推荐
模块上移
模块下移
不移动