Timer control pump operation time, less expensive and easy to operate.

定时器控制泵的运转时间，较便宜且操作简单。

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Now the novel linear motor of bidirectional pulse variable-frequency control is applied to drive the flow control pump successfully.

目前，设计的双向脉冲变频控制的直线电机已成功应用于计量泵的驱动器中。

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A whole control plan is given according to the fact and need of fire control pump room in liquid workshop of Qilu petrochemical store and transport plant.

针对齐鲁石化储运厂液体车间消防泵房的实际情况和具体要求提出了整体控制方案。

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Despite angry Republican rhetoric, the president has little control over prices at the pump.

ECONOMIST: Petrol prices

The less we import, the more control we have over what happens at the pump.

WHITEHOUSE: Building a Clean Energy Economy

They contain a battery-powered pump and bladder, allowing the cylinder to control its buoyancy.

BBC: Cyber-sailors to survey oceans