| 单词 | rubbing bed |
| 释义 | > as lemmasrubbing bed rubbing bed n. ΚΠ 1848 Times 9 Dec. 8/6 (advt.) Spring carts and trucks, rubbing bed, large folding-gates, slate slabs, and slips for chimney-pieces, work-benches, and other implements of the trade. 1850 C. Holtzapffel Turning & Mech. Manip. III. 1196 Slabs of marble..that are required to have flat surfaces..are laid upon the rubbing-bed. 1922 Soda Fountain July 34/2 After the first slicing the slabs are put on a rubbing bed, which is a great steel disk about twelve feet in diameter, and charged with sand and water. 2003 A. C. Guinness in P. M. LeTourneau & P. E. Olsen Great Rift Valleys of Pangea II. 240/2 Rubbing beds were employed for smoothing and polishing. < as lemmas |
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