| 单词 | centre second |
| 释义 | > as lemmascentre second centre second n. (in a watch or clock) a second hand mounted on the centre arbor (more fully centre second hand); (in plural) the fact of indicating seconds with such a hand on a particular watch or clock. ΚΠ 1801 Jrnl. Nat. Philos., Chem., & Arts May 58 A watch with center seconds, the common Verge Escapement, and having a thermometer, or compensation piece. 1826 T. Reid Treat. Clock & Watch Making ii. 30 A center seconds watch whose train was 14400, which is by far too slow for a pocket watch. 1869 Engineering 12 Mar. 176/1 It is said that this is the largest clock in the world having a centre-second hand. 1918 Tatler 8 May 163 The New Shape 8-day Folding Clock, with Centre Seconds. 1985 Islands Feb. 93/2 (advt.) Quartz accuracy plus a convenient instant setting day/date bilingual English/Spanish calendar and a center second hand. 2008 D. Judy Watches 29 (caption) Agassiz Watch Co., circa 1920, 21J 43mm nickel case, power reserve indicator, center seconds stop/start feature. < as lemmas |
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