The extensive use of lager submerged pump system puts forward a higher requirement for its hydraulic performance.

随着大型潜水泵装置的逐步推广应用，对其水力性能的要求不断提高。

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It has little volume, high efficiency, power saving, operating liability compared with former FY series corrosive vertical submerged pump.

与原FY型耐腐蚀液下泵相比，具有体积小、效率高、节能效果好，运行可靠等优点。

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There are three major processes in light oil tank truck unloading, namely vacuum pump unloading, submerged pump unloading, and slide pump unloading.

轻油罐车卸槽工艺主要有真空泵卸槽法、潜油泵卸槽法和滑片泵卸槽法。

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Even though the pumps were not essential since the plant is in a scheduled refueling shut down, and plant operators even moved a portable pump into the threatened building in case the regular pump had been submerged, the sense was that things were amiss.

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