The imported frequency control of motor speed adapts to different printing speeds. 進(jìn)口變頻電機調速，適應不同印刷速度。
The doffer is driven by an inverter and a synchronous toothed belt which permits stepless variations of the speed. 道夫采用變頻電機，同步齒形帶傳動(dòng)，實(shí)現無(wú)級調速。
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