单词 | diamond-mill |
释义 | > as lemmasdiamond-mill diamond-mill n. (see quot.). ΚΠ 1881 F. J. Britten Watch & Clockmakers' Handbk. (ed. 4) 130 Diamond Mill, for cutting and polishing ruby pallets and other hard stones discs charged with diamond powder and revolving at a high speed are used. < as lemmas |
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