| 单词 | oil sink |
| 释义 | > as lemmasoil sink oil sink n. ΚΠ 1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 47 Oil sinks are formed in watch and clock plates so that..the oil is kept close to the pivot. 1962 E. Bruton Dict. Clocks & Watches 102 Le Roy, Julien... Perfected the oil sink about 1725 and may have invented the rod gong and dumb repeater. < as lemmas |
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