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单词 cross-mouth chisel
释义

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cross-mouth chisel
cross-mouth chisel n. a cylindrical boring chisel with a diametrical blade; also cross-mouthed chisel.
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society > occupation and work > equipment > cutting tool > chisel > [noun] > boring chisel
boring-bit1844
bore-bit1870
cross-mouth chisel1874
straight bit1883
1874 E. H. Knight Amer. Mech. Dict. I. 650/1 Cross-mouth chisel, a boring-chisel of a cylindrical form with a diametrical blade.
1896 Daily News 26 Sept. 3/5 Cross-mouthed chisels of hardest tool steel.
extracted from cross-comb. form
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更新时间:2024/12/24 10:31:15