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1·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。

2·This article mainly introduces the prediction method of the flow pattern, pressure gradient and liquid holdup of two phase flow in horizontal pipelines.

本文着重介绍水平管中这种两相流动的流动型态、压力梯度和持液率的预测方法。

3·Through the statistical analysis of the test results, it was found that we could obtain the liquid slug frequency from the fluctuation of the slug liquid holdup.

通过对试验结果的统计分析可以得出：①可以利用段塞流持液率的波动情况来确定液塞频率。

4·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。

5·The theoretical analyses of the hydrodynamics under a strong interaction flow regime were conducted and data of the bed averaged dynamic liquid holdup were obtained.

对气液强相互作用下滴流床反应器内的流体动力学进行了分析讨论。

6·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。

7·During the operation, the gas holdup and liquid movement velocity could be regulated and controlled using the models to keep the reactor in high-efficiency and steady state.

在实际运行中，通过所建模型对反应器中的气含率和液体运动速率进行有效调控，可实现反应器的高效稳定运行。

8·Conical degree spiral packing has the advantage in the handling ability, pressure drop and dynamic holdup liquid and so on.

此填料具有处理能力大，阻力压降小，动持液量大、制作简易等优点。

9·Hydrodynamics and mass transfer of triplet loop biological fluidized bed reactors were studied in terms of gas holdup, liquid circulation velocity and volumetric mass transfer coefficient.

从气相含率、液体循环速度和体积氧传质系数方面研究自行设计新型结构的三重环流生物流化床的流体力学与传质特性。

10·Determination methods of parameters which involved gas holdup, liquid circulation velocity, solid holdup, bubble behaviors etc in the loop reactor were introduced.

介绍了环流反应器流体力学参数的测定方法，这些参数包括气含率、循环液速、固含率、气泡大小及速度。