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单词 piercing-file
释义

> as lemmas

piercing-file
piercing-file n. Obsolete
ΚΠ
1846 C. Holtzapffel Turning & Mech. Manip. II. 826 Nicking and piercing files..are called round-off files, and are used for rounding or pointing the teeth of wheels.
1875 E. H. Knight Amer. Mech. Dict. III. 1699/2 Piercing-file, a sharp and narrow file to enlarge a narrow drilled hole.
extracted from piercingn.
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as lemmas
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更新时间:2024/11/10 21:24:36