| 单词 | dot punch |
| 释义 | > as lemmasdot punch dot punch n. a tool similar to a centre punch (centre punch n. at centre n.1 and adj. Compounds 3) but typically thinner, lighter, and having a sharper tip, used for marking the centre of a hole that is to be drilled, or (more generally) for making an indentation in the surface of an object. ΚΠ 1862 Internat. Exhib.: Juror's Rep. xiii. 71/1 The paper is thus drawn forward one, two, or three times the length of the dot punch. 1938 Proc. Royal Irish Acad. 1937–8 C. 44 188 Impressions of ball or dot punches may be found on many works. 2002 D. Salmon & P. Powdrill Mech. Engin. vii. 185 Dot punches are also used to punch dimples for marking out lengths with dividers. < as lemmas |
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