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countersinks

英['kaʊntəˌsɪŋk] 美['kaʊntəˌsɪŋk]
  • v.张扪孔口;钻孔装埋;打埋头孔n.皿锥;埋头孔;暗钉眼
countersunk countersunk countersinking countersinks

详细释义

Noun:
  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

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

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