dimensionless energy ratio 无量纲能量比
dimensionless transmitting ratio 相对传动比
Dimensionless Pressure Drop Ratio 无量纲压降比
dimensionless elastic constant ratio 无量纲弹性常数比
dimensionless temperature difference ratio 无量纲温度差值比
dimensionless vapor pressure difference ratio 无量纲蒸汽压差值比
dimensionless method under part-load ratio 部分负荷率无因次分析方法
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