The invention may reduce electrical energy loss which the condenser charge needs during the actuation, thus causes the actuation becomes easier.
通过本发明可降低在驱动其间发生的对电容充电所需的电能 损失，从而使驱动变得更加容易。
Its actuation may select decelerates the electrical machinery, the motorized pulley two ways.
其驱动可选用减速电机、电动滚筒两种方式。
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