英语词汇“centre punch”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

centre punch n. a tool (typically consisting of a long, slender rod with a conical tip) 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

1825 Amer. Mechanics' Mag. 30 Apr. 200/2 Mr. Le Gros..exhibited a pane of common window glass perforated completely through..without the glass being, as it is technically called, starred; he assured us it was done with a center punch, and hammer on an anvil.

1923 Pop. Sci. Monthly Dec. 82/3 Center punches..should be long and slender at the pointed end so that they will not obstruct the view of the lines that are being punched.

2000 Model Railroader Feb. 82/2 Use a scribe and center punch to mark and start holes.

单词	centre punch
释义	> as lemmas centre punch centre punch n. a tool (typically consisting of a long, slender rod with a conical tip) 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 1825 Amer. Mechanics' Mag. 30 Apr. 200/2 Mr. Le Gros..exhibited a pane of common window glass perforated completely through..without the glass being, as it is technically called, starred; he assured us it was done with a center punch, and hammer on an anvil. 1923 Pop. Sci. Monthly Dec. 82/3 Center punches..should be long and slender at the pointed end so that they will not obstruct the view of the lines that are being punched. 2000 Model Railroader Feb. 82/2 Use a scribe and center punch to mark and start holes. extracted from centrecentern.¹adj. < as lemmas
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