This is actually a speed control device that is in use.
其实这是一种正在使用中的减速装置。
The whole machine is centralized control, speed adjustment by motor continuous action, complete safety device.
全机集中控制，马达连动调速，安全装置齐备。
The whole machine is centralized control, speed adjustment by motor continuous action, complete safety device.
全机集中控制，马达连动调速，安全装置齐备。
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