The overall design for the hydraulic top drive, discussed how to choice the motor, pump, and the design and layout of the gear box, the brake energy recovery and so on.
对液压顶驱进行了总体设计，讨论了马达、泵等的选择，减速箱的设计方案与布局，刹车制动能量回收等。
The fluid mechanical drive, the hydraulic power changes with the hydraulic brake, the rear wheel changes.
液力机械传动，液压动力转向和液压制动，后轮转向。
Hydraulic system for wind mill generator is used to perform pitch-control and brake-control, featured by its strong drive-force, prompt response and stable operation.
风力发电机组变桨液压系统用于实现变浆控制和刹车控制，具有驱动力强、响应快速、运转平稳的特点，在整台风力发电机组中充当着重要角色。
Hydraulic system for wind mill generator is used to perform pitch-control and brake-control, featured by its strong drive-force, prompt response and stable operation.
风力发电机组变桨液压系统用于实现变浆控制和刹车控制，具有驱动力强、响应快速、运转平稳的特点，在整台风力发电机组中充当着重要角色。
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