导轨直通到升降井顶部。钢丝绳在顶部绕过一个滑轮。滑轮由电动机驱动可向任一方向转动。

The rails pass up to the top of the shaft, where they are taken over a pulley which can be driven in either direction by an electric motor.

youdao

导轨直通到升降井顶部。钢丝绳在顶部绕过一个滑轮。滑轮由电动机驱动可向任一方向转动。

The rails pass up to the top of the shaft, where they are taken over a pulley which can be driven in either direction by an electric motor.

youdao