The prerequisite for cavitation is that there exists an area in which absolute pressure is lower than or equal to vaporizationpressure.
流场中具有绝对压强小于或等于汽化压强的区域是射流空化的必要条件；
2
A relation between the saturated vapor pressure and the heat of vaporization for pure liquids has been derived by statistical thermodynamic method.
本文用统计热力学方法导得了液体饱和蒸气压与蒸发热间的关系式。
3
A feedforward neural network was used to predict functional relationship of temperature with steam pressure and heat of vaporization of the pure material.