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。
Technological calculation in a hilly multiphase pipe flow includes flow pattern prediction , liquid holdup and pressure drop calculation and temperature prediction.
流型识别对研究石油多相流技术具有重要意义，传统流型判别方法存在着诸多弊端。
Flow regime recognition plays an important role in petroleum multiphase flow research. However, the traditional flow regime identifying methods have many shortcomings.
大斜度井中多相流持率计算一直是困绕人们的技术难题，流态及流型判定是影响持率计算的主控因素。
In high Angle Wells, calculating holdup of multiple phase flow is always a difficult technique problem, the judgment of flow regime and flow pattern is the main effect on calculating the holdup.
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