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.

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。

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And outside the donkey brays, the women gossip at the pump, the colts gallop across the fields.

而院外，驴子在咴咴地嘶叫，女人在水井边叽喳地闲聊，小马驹在田野上自由地欢跳。

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And outside the donkey brays, the women gossip at the pump, the colts gallop across the fields.

而院外，驴子在咴咴地嘶叫，女人在水井边叽喳地闲聊，小马驹在田野上自由地欢跳。

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