... speed regulation device 调速装置 step speed regulation 有级调速 stepless speed regulation 无级调速 ; 无段调速 ...
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The electric control unit USES variable frequency step-less speed regulation for easy operation, operation panel is simple and clear.
本机的电气控制采用变频无级调速，操作方便、直观，操作面板简洁、明了。
Seal performance is stable: Merging functions of step-less speed regulation and photoelectric trace into a single whole, operation is convenient.
封口性能稳定：集无级调速、光电跟踪等功能于一体，操作方便。
The electric control uses variable frequency step-less speed regulation for easy operation. Operation panel is simple and clear.
本机的电气控制采用变频无级调速，操作方便、直观，操作面板简洁、明了。
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