求翻译：电动推车机同样是为了使小车组能顺利过渡的设备。当小车由链条带动到无动力处时，牵引链条上与小车升降爪啮合的推杆脱离与升降爪的啮合，此时小车停于推车机占位开关处，于是开关将感应信号反馈给主控柜，由PLC控制推车机动作，将小车推入下一条输送链回路，被该链条上的推杆带走。是什么意思？

The electric cart machine is the same car group a smooth transition of equipment. When a car driven by the chain to no power at the traction chain, putting the car lifting claw engagement out of engagement with the lifting claw, the car stopped in the pusher the placeholder switch at sensor signal,

Electric cart machine is also in order to make car hire group to have a smooth transition. The car driven by the chain without power to the traction chain, with trolley pusher of lifting claws engage with lift off the engagement, and the car stopped in the cart is a switch, then switch to sense sign

Electric pusher is also in order for the smooth transition of the small units of equipment. Dang car by chain led to no power Department Shi, traction chain Shan