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单词 pinion gauge
释义

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pinion gauge
pinion gauge n. (also pinion gage) Watchmaking Obsolete a pair of calipers used to measure the height of the shoulders of pinions, etc., the distance between the legs being adjustable by a screw.
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the world > time > instruments for measuring time > watch > [noun] > making watches > tools or materials used in watchmaking
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1779 Philos. Trans. 1778 (Royal Soc.) 68 959 For if in the usual method of using a pinion-gage one was to take upon a wheel of 12 or 18 teeth a little more than the three points..supposed to be in due proportion with a pinion of six.
1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 193 Pinion Gauge, a gauge used by watchmakers for taking the height of pinion shoulders and other measurements.
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更新时间:2024/11/10 19:28:51