| 单词 | counterbored |
| 释义 | > as lemmasˈcounterbored ˈcounterbored adj. ΘΚΠ society > occupation and work > industry > working with tools or equipment > fastening > [adjective] > with screw > of hole: enlarged to receive screw-head countersunk1865 counterbored1920 the world > space > relative position > condition of being open or not closed > an opening or aperture > [adjective] > having (a) hole(s) > bored, pierced, or perforated > with a sharp-pointed instrument > enlarged counterbored1920 1920 Engin. & Mining Jrnl. 7 Feb. 405/2 They run on hardened tool-steel shafts set in counterbored sockets open at the top only. < as lemmas |
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