condensability

The condensability of liquid,the Westphal's effect and the continuous flow condition are not only comprehensively considered,but also the dynamic property of the ball valve being established.

结合现场试验,根据直线电泵运动,合考虑了液体的可压缩、魏氏效应、液体连流动条件和球阀的动力,建立了直线电泵球阀运动规律的精确运动微分方程组。