| 单词 | polishing bed |
| 释义 | > as lemmaspolishing bed polishing bed n. a machine in which the surface of stone is rubbed smooth. ΚΠ 1856 Sci. Amer. 29 Nov. 90/2 This improvement consists in grooving the polishing bed, whereby the air finds access under the polishing surface. 1890 Cent. Dict. Polishing-bed, a machine for smoothing and polishing the surface of stone by the attrition of rubbers. 1934 Bismarck (N. Dakota) Tribune 7 Apr. 21/5 With the polish completed over the entire top surface of the slab, a traveling crane lifts it from the polishing bed and carries it to the ‘carbo’ saws. < as lemmas |
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