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,根据直线运动特性,综合考虑了体的可压缩性、魏氏效应、体连续流动条件和球阀的动力特性,建立了直线球阀运动规律的精确运动微分方程组。

However, because the compressibility of DPPC monolayer is low at high surface pressure, DPPC monolayer is easy to cause film collapsing due to overcompression.

然而DPPC单分子膜在高膜压时之可压缩性小，因而过度的压缩，会导致单分子膜的崩塌。