Install the additional coolant pump for exhaust gas recirculation.

安装用于废气再循环的附加冷却液泵。

The sludge is passed under a vacuum pump and allows the water to pass through a discharge or recirculation drain.

用真空泵除去污泥的固体含量而该泥水则经排水渠或回流渠排出。

The waterfeeding recirculation header pipe will be set between water-feeding pump and deaeration water tank to fulfill requirements for start-up and low load operation of waterfeeding pump.

在给水泵与除氧水箱之间，设置给水再循环母管，以满足给水泵在启动及低负荷运行时的需要。

Useful information for the performance improvement was got from the distribution of inner flow velocity and pressure, flows impact, secondary flow and recirculation in the helix centrifugal pump.

通过对该泵内部流动速度、压力分布与捕捉到的流动冲击、二次流、回流等重要现象的分析，给该泵的性能改善与改进提供可靠的信息。