counter sink

 
  • 錐口孔
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counter sink的英文翻譯是什麼意思,詞典釋義與在線翻譯:

英英釋義

名詞 countersink:
  1. a hole (usually in wood) with the top part enlarged so that a screw or bolt will fit into it and lie below the surface

  2. a bit for enlarging the upper part of a hole

動詞 countersink:
  1. insert (a nail or screw below the surface, as into a countersink)

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