液压行走，采用进口行走泵和行走马达，无级变速。
这两个人都没有进行过更换泵模组的训练，但是曾经在一起进行了广泛的太空行走。
The two have not trained for a pump module replacement but had extensive spacewalk training together.
此种齿轮泵回路的典型应用是工程机械上常可见到的行走、转向机构，它节省去一个辅助泵。
This kind of gear pump return route's model application is on the engineering machinery Chang ke sees walks, the rotation gear, it saves a donkey pump.
同时，发动机转速的恒定也使液压泵输出排量稳定，进而保证了行走速度和振动频率的稳定，提高了压实质量。
At the same time, constant engine speed stabilizes output displacement of hydraulic pump and then stabilizes travel speed and vibratory frequency in turn, so that compaction quality is increased.
工程车辆液压驱动系统由发动机、液压泵、液压马达、行走机构组成，这四个部分之间相互联系和影响。
Construction vehicle's hydraulic pressure drive system is composed of diesel, hydraulic pump, hydraulic motor and working system, they interact each other.
因此对工程机械行走驱动泵控马达闭式回路系统及关键液压元件开展研究将有重大意义。
Therefore the research of pump-control-motor closed-circuit for mobile hydraulics driving system and key hydraulic components will have great significance.
因此对工程机械行走驱动泵控马达闭式回路系统及关键液压元件开展研究将有重大意义。
Therefore the research of pump-control-motor closed-circuit for mobile hydraulics driving system and key hydraulic components will have great significance.
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