| 单词 | equatorial clock |
| 释义 | > as lemmasequatorial clock equatorial clock a clock for driving an equatorial (see sense B.). ΚΠ 1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 66 Conical pendulums are not much used except for equatorial clocks. 1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 102 Equatorial Clock, a clock for driving an equatorial telescope. It has generally a conical pendulum or other device for rendering its motion continuous. < as lemmas |
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