- vt.
(-sunk ) 打孔装埋(螺钉头)，打埋头孔。n.
埋头钻；埋头孔，暗钉眼。
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countersink中文什么意思
例句与用法
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- " countersunk head nib bolts " ploughshare " type
商业性通用螺栓制造.埋头尖螺栓 - Countersunk head rivets ; nominal diameters 10 to 36 mm
沉头铆钉.公称直径10至36mm - Detachable pilots for counterbores and countersinks
扩孔钻和沉头钻用可拆卸导杆 - Countersunk head screws - head configuration and gauging
埋头螺钉.头部外形和测量 - Slotted raised countersunk head screws with waisted shank
开槽半沉头不脱出螺钉
英文释义
名词- a bit for enlarging the upper part of a hole
同义词：counterbore, countersink bit - 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
- insert (a nail or screw below the surface, as into a countersink)
同义词：set
百科释义
A countersink is a conical hole cut into a manufactured object, or the cutter used to cut such a hole. A common usage is to allow the head of a countersunk bolt or screw, when placed in the hole, to sit flush with or below the surface of the surrounding material.
详细百科解释