| 单词 | tipsy key |
| 释义 | > as lemmastipsy key tipsy key n. a kind of watch-key invented by Bréguet: see quot. 1884. ΚΠ 1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 36 Tipsy Key, a watch key in which the upper and lower portions are connected by means of a ratchet clutch kept in gear by a spring, so that the upper part will turn the lower part in the proper direction for winding. < as lemmas |
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