液力传动指的是利用液体动能进行能量转换的装置，具有随负载扭矩变化而自动调速及柔性传动、过载保护等优点。
The hydraulic transmission means that power is transmitted by kinetics of liquid, with the properties of varying speed, soft driving and protecting from overloading.
具有双级液体压力输出的气—液复合传动系统，能实现低压大流量到高压小流量的自动切换。
The pneumatic-hydraulic composite transmission system with two-step output liquid pressure automatic switchover from low pressure and mass flow to high pressure and little flow.
具有双级液体压力输出的气—液复合传动系统，能实现低压大流量到高压小流量的自动切换。
The pneumatic-hydraulic composite transmission system with two-step output liquid pressure automatic switchover from low pressure and mass flow to high pressure and little flow.
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