When applicable, pumps shall be designed to allow for the addition of parallel pump units to be coupled by the primary pump shaft.

如合适，应将泵设计成允许加入与主泵轴相连的平行泵单元。？

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On the station level, through the solution of in-line non-linear bounded identification problem of parallel running pumps, the self-adapting control of the pump station is realized.

对泵站级，解决了多泵并联运行的水泵参数在线辩识问题，从而实现了泵站的自适应控制。

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Studying four-wave mixing, we get the phase-conjugate reflectivity in three cut planes in BSO when the polarization of signal beam and pump beam are parallel or not parallel.

在研究四波耦合时，分别讨论了在三种BSO晶体切面上，信号光和向前泵浦光的的偏偏振振态态互相平行和存在夹角时相位共轭反射率的特性；

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In some places, bulldozers are still at work, burying a second parallel pipeline that will eventually pump Azeri natural gas along the same route to neighboring Turkey.

NPR: Georgia Hopes for Boost from Caspian Pipeline