| 单词 | countersink |
| 释义 | countersink['kauntəsiŋk]vt. 钻孔装埋, 打埋头孔于n. 埋头孔, 锥口钻【机】 锥坑 countersink coun.ter.sink AHD: [koun“t…r-s¹ngk”] D.J. [6ka&nt*7s!0k]K.K. [6ka&nt+7s!0k]n.Abbr. csk.（名词）缩写 csk.1. A hole with the top part enlarged so that the head of a screw or bolt will lie flush with or below the surface.埋头孔：顶部扩大的孔，为使钻或螺栓的头与地面相平或在地面以下2. A tool for making such a hole.埋关钻：制造这种孔的工具v.tr.（及物动词） coun.ter.sunk[-s¾ngk”] coun.ter.sink.ing,coun.ter.sinks 1. To make a countersink on or in.在…上或…内造埋头孔2. To drive (a screw or bolt) into a countersink.将钻或螺栓置入埋头孔 |
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