The utility model can realize the stepless speed change and has reliable positioning and easy speed change operation and is an ideal speed changing device for the line driving bicycles.
本实用新型可实现无级变速，定位可靠，变速操作方便，是线传动自行车的一种理想变速装置。
The invention is a AC-AC frequency-changing stepless speed regulation device for AC motors.
本发明是一种交流电动机交交变频无级调速装置。
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