Wheel train

Motion work of a clock, showing (f) center wheel, (x,b) cannon pinion, (x') minute wheel, (y,c) hour wheel, (t) hour hand, (m) minute hand.

In horology, a wheel train (or just train) is the gear train of a mechanical watch or clock. Although the term is used for other types of gear trains, the long history of mechanical timepieces has created a traditional terminology for their gear trains which is not used in other applications of gears.

单词	Wheel train
释义	Wheel train 英语百科 Wheel train In horology, a wheel train (or just train) is the gear train of a mechanical watch or clock. Although the term is used for other types of gear trains, the long history of mechanical timepieces has created a traditional terminology for their gear trains which is not used in other applications of gears.
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