This Paper conducted a pilot study by the following three areas:Firstly, pressure fluctuation experiments of UPVC single pipe, double pipe under the steady pressure condition were conducted.
本文主要进行了以下三方面试验研究：第一，稳定压力下UPVC普通单立管、双立管压力波动的模拟试验。
Three-phase relative permeability of oil, gas and water for a number of water wet sandstone. core samples has been measured by this method in steady state condition.
在稳态条件下，利用该方法测定了水湿样品的油、气、水三相相对渗透率。
The dipole forces steady solution of a ladder-type three-level atom of nearly equispaced energy level driven by a standing wave is derived from the atomic master equation.
从三能级原子的主方程出发，给出了能级近似等间距梯型三能级原子在单色驻波场中所受偶极力的稳态解，并进行了数值计算作图分析了偶极力，能级布居率随失谐量，光场幅度和空间的变化。
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