Definition of gear train in English:

gear train

noun

单词	gear train
释义	Definition of gear train in English: gear train noun A system of gears which transmits motion from one shaft to another. Example sentencesExamples They can be used in designing gear trains, including those that might be found in a planetarium to simulate the relative motion of the sun and moon around Earth. This moves an oscillating weight that drives a rotor via a tiny gear train. Also, the gear train of a mechanical watch is under constant load from the mainspring whereas the gear train in a quartz watch is not under any load. The first things to go in were the engines, a job that required a lot of measuring and development of a gear train to match their output to the belts and shafts that drove the looms. Traditional electric-motor gear trains sacrifice speed for torque, or vice versa.
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