| 单词 | halfchronometer |
| 释义 | > as lemmashalf-chronometer half-chronometer n. Watchmaking (now historical) (originally) a watch, spec. one whose mechanism combines the lever and chronometer escapements; (later also) a fine lever watch which has been adjusted for temperature. Π 1851 Official Descriptive & Illustr. Catal. Great Exhib. IV. 1273/1 Half chronometer, for the use of the deaf and blind, being a new invention. 1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 115 Half Chronometer..originally used to denote watches having an escapement compounded of the lever and chronometer, appears now to be applied to fine lever watches which have been adjusted for temperature. 1963 Biogr. Mem. Fellows Royal Soc. 9 165 The biographer has seen them yield a half chronometer, three large pocket watches, [etc.]. half-chronometer half-chronometer n. (see quot. 1884). ΚΠ 1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 115 Half Chronometer..originally used to denote watches having an escapement compounded of the lever and chronometer, appears now to be applied to fine lever watches which have been adjusted for temperature. < as lemmas |
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