The grapple can also rotate around the central vertical axis as a hydraulic motor is employed to drive the c…

中心轴的旋转由一个液压马达驱动，可以实现绕铅垂中心轴线的回转。

youdao

The grapple can also rotate around the central vertical axis as a hydraulic motor is employed to drive the c…

中心轴的旋转由一个液压马达驱动，可以实现绕铅垂中心轴线的回转。

youdao