The quality detecting for two phase flow of water vapor is analyzed theoretically and the program for detecting continuous quality is designed by using of nuclear radiation sensor.

对水汽二相流的质量检测进行了理论分析，提出了利用核辐射传感器连续检测干度的方案。

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Following the theory on characteristics of first order quasi-linear partial differential equations, classification of the balance equations for two-phase flow in interior ballistics is discussed.

根据一阶拟线性偏微分方程组的特征理论，讨论内弹道两相流方程组的类型。

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Spectrum analysis and phase method were used for the boiling two phase flow studying in this paper.

采用频域和相空间方法分析沸腾两相流系统。

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