The proportional variable pump system made up with electrohydraulic proportional reversing valve and axial variable pump is a new kind of hydraulic dynamic structure.

由电液比例换向阀和轴向变量泵组成的比例变量泵系统是一种新型液压动力机构。

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TYB series waterflood pressure regulating systems consist of two cylinder four chamber pump body, electro hydraulic reversing valve, control fluid circuit and control current circuit.

TY B系列调压注水装置由双缸四腔泵体、电液换向阀、控制液路及控制电路组成。

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This pumping unit is made up of supporting frame, ratchet reversing gearbox, touch the pump body, make way for agencies, balance weight protection, brake mechanism.

该抽油机的主要组成结构包括机架，棘轮换向减速箱，碰泵机构，让位机构，平衡重保护装置，刹车机构。

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The Internal Revenue Service announced today that you can use pre-tax flexible spending account money to buy a breast pump and related lactation supplies, reversing a stingy position.

FORBES: Tax Victory For Breast-Feeding Mothers

We can prime the pump though, and go a long way towards reversing the long stagnation in income growth.

FORBES: Jobs In a Ripple-Out Economy Come From Oil, Gas, Coal, and Then the Cloud