The phase fraction of gas - liquid two - phase flow includes void fraction and phase holdup of liquid mixture.

气液两相流的相份额包括含气率与液相中各分相的含率.

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The change regularities on void fraction and density of powder material were revealed mathematically.

同时,运用数学的方法揭示了粉体的空隙率和粉体密度的变化规律.

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Electrical probes are applied to examine the void fraction in cross - flow zone of the shell - side.

应用电导探针,研究了壳侧各流路对错流区的气液分布状态的影响.

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