介绍了利用超声波在液体介质中传播，使质点产生强烈振动而引起交变压力的原理。
It introduced the principle of alternating pressure caused by particle vibration, when ultrasonic propagating in liquor medium.
与拉格朗日分析方法比较表明：本文的分析方法对于计算惰性介质质点运动状态具有简单性，而且具有较好的计算精度。
The comparison with the method of usual lagrange analysis shows that the method is convenient and accurate in calculating the histories of particle variabes in inert medium.
基于多孔介质流体质点渗流规律，考虑反凝析油的影响，推导了近似直线供给边界的边水凝析气藏见水时间预测新公式。
Therefore, the prediction formula of the water breakthrough time is derived based on fluid flow in porous media, considering the impact of anti-condensate.
岩石介质中爆炸波的特点是压力高、传播速度快，对介质质点的作用在瞬间完成。
The feature of explosion signals in elastic-plastic region of rocks is in the state of high pressure, of high speed, and of transient action on the particle motion.
岩石介质中爆炸波的特点是压力高、传播速度快，对介质质点的作用在瞬间完成。
The feature of explosion signals in elastic-plastic region of rocks is in the state of high pressure, of high speed, and of transient action on the particle motion.
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