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单词 winding jack
释义

> as lemmas

winding jack
15. More fully winding jack. A device or mechanism used for making a large clock easier to wind.
ΚΠ
1850 E. B. Denison Rudimentary Treat. Clock & Watch Making iii. cxli. 181 The loose jack consists of a frame containing a wheel and pinion with the arbor of the pinion squared to form the winding square.
1885 Horol. Jrnl. Dec. 63/2 The train of wheels of the jack would prevent the weight from rotating it.
2010 C. McKay Big Ben p. xiv. (gloss.) Winding jack, reduction gear to make winding a clock easier.
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更新时间:2024/9/21 14:28:51