Through contrast test and correction, this system has a maximum error of 0.18%.
经过校正对比测试，该系统效率的最大误差为0.18%。
Compared with several normally used mathematical solution models, the new model has a maximum error of 7% in calculating DBRF, which has a higher solution precision.
相较于几种常用的计算模型，新模型计算dbrf的误差不超过7%，具有更高的求解精度。
When the pump runs off the peak efficiency, the error of conversion method decreases in the large flow-rate region, while increases in the small flow-rate region, with a maximum error of 3.043%.
水泵装置在非最优工况下变速运行时，大流量侧装置性能参数按相似律换算误差变小，在小流量侧换算误差增大，最大相对误差达3.043%。
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