| 单词 | rattle barrel |
| 释义 | > as lemmasrattle barrel rattle barrel n. now rare a tumbling-box used for cleaning and polishing metal castings. ΚΠ a1884 E. H. Knight Pract. Dict. Mech. Suppl. 742/2 Rattle barrel, a tumbling box for castings, to remove sand, and, in some cases, cores. 1884 C. G. W. Lock Workshop Receipts 3rd Ser. 252/1 These castings are put into a tumbler or rattle barrel, where they..become polished by mutual friction. 1934 Times 1 Dec. 24/4 Foundry Plant, including:..double worm sand mixer, 29 Rattle Barrels, Git Cutter, Coke Crusher..[etc.]. < as lemmas |
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