在含水率较高的大排量浅井中，流体的惯性效应使设备负荷增加，并降低了泵效。
Fluid inertia effects increase equipment loading and reduce efficiency in high rate shallow Wells with high water production.
纹波系数低，对其它设备干扰小；强制风冷式散热，负荷自动均分，故障率低，可靠性高。
Low ripple factor: it's of low interference to other equipments, forced air-cooling, automatically Shared load, low failure rate and high reliability.
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