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.
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