There is a switch board (control panel, distribution box) mounted on the wall.
在墙上装有一个开关板（控制盘、配电箱）。
Operate through the control switch of the control board.
通过操纵台上的控制开关进行操作。
There is a switch board mounted on the wall.
在墙上装有一个开关板。
Foot switch board has quick lowering function when unload.
脚踏开关板具备空载快速下降功能。
Foot switch board has quick lowering function when unload.
脚踏开关板具备空载快速下降功能。
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