countersink (drill)

 
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countersink (drill)的英文翻譯是什么意思,詞典釋義與在線(xiàn)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(dòng)詞 countersink:
  1. insert (a nail or screw below the surface, as into a countersink)

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