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DPPC分子膜在高膜压时之可压缩性小，因过度的压缩，会导致分子膜的崩塌。

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.

结现场试验,根据直线电机采油泵运动特性,综考虑了的可压缩性、魏氏效、连续流动条件和球阀的动力特性,建立了直线电机采油泵球阀运动规律的精确运动微分方程组。