安装连接总泵至组合阀的煞车管线。

Install brake lines that connect master cylinder to combination valve.

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液压泵的组合设计。

Combination design of the pumps.

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组合开关，转向助力泵，电动燃油泵。

Combination Switch, Power Steering Pump, Electric Fuel Pump.

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建立下泵深度和抽油杆柱组合优化设计模型。

The optimal design model of downhole pump depth and rod string assemblage is set up.

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其泵内装有滑环式组合密封。

A sliding ring type combined seal is arranged in the pump.

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其泵内装有滑环式组合密封。

A sliding ring type combined seal is arranged in the pump.

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