The hydraulic pump is the drive component of the hydraulic system.
液压泵是液压传动系统的心脏，是液压驱动系统的动力元件。
I want a small hydraulic pump to drive air into the tank.
我要买一个小水泵把给水箱加气。
The oil pump drive gear oil seal is damaged, the air into the hydraulic system;
油泵主动齿轮油封损坏，空气进入液压系统；
The oil pump drive gear oil seal is damaged, the air into the hydraulic system;
油泵主动齿轮油封损坏，空气进入液压系统；
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