Liquid holdup plays an important role in the technology calculation of multi - phase flow. All kinds of correlations always are concluded by the experiment data or field data.
持液率计算在多相流工艺计算中占有重要的地位，各种相关式都是依赖于实验或现场数据得出的经验或半以验相关式。
In two-phase oil and gas flow, the calculation of pressure drop and liquid holdup plays an important rule in technological calculation.
在油气两相管流中，压降和持液率的计算在工艺计算中占有重要的地位。
Technological calculation in a hilly multiphase pipe flow includes flow pattern prediction , liquid holdup and pressure drop calculation and temperature prediction.
多相管路的工艺计算包括流型判别，持液率和压降、温降的计算。
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