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。

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,直采油泵运动特性,综合考虑了液体的可压缩性、氏效应、液体连续流动条件和球阀的动力特性,建立了直采油泵球阀运动规律的精确运动微分方程组。

The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.

最小测试压差不是依赖于地层流体粘度和压缩性，而是为地层孔隙度、渗透率和射孔孔眼半径的函数。

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，因而过的压缩，会导致单分子膜的崩塌。

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.

结合现场试验,根据直线电机采油泵运动特性,综合考虑了液体的可压缩性、氏效应、液体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。

The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.

最小测试压差不是依赖于地层流体粘和压缩性，而是为地层孔、透率和射孔孔眼半径的函数。

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，因而过度压缩，会导致单分子膜崩塌。

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.

结合现场试验,根据直线电机采油泵性,综合考虑了液体可压缩性、氏效应、液体连续流条件和球力性,建立了直线电机采油泵球规律精确微分方程组。

The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.

最小测试压差不是依赖于地层流体粘度和压缩性，而是为地层孔隙度、渗透率和射孔孔眼半径函数。

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，单分子膜的崩塌。

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.

结合现场试验,根据直线电机采油泵特性,综合考虑了液体的可压缩性、氏效应、液体连续流条件和球阀的力特性,建立了直线电机采油泵球阀规律的精确分方程组。

The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.

最小测试压差不是依赖于地层流体粘度和压缩性，而是为地层孔隙度、渗透率和射孔孔眼半径的函数。

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单子膜在高膜时之可性小，因而过度，会导致单子膜崩塌。

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.

结合现场试验,根据直线电机采油泵运动特性,综合考虑了液体可性、氏效应、液体连续流动条件和球阀动力特性,建立了直线电机采油泵球阀运动规律精确运动微组。

The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.

最小测试差不是依赖于地层流体粘度和性，而是为地层孔隙度、渗透率和射孔孔眼半径函数。

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。

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,根据直线电机采油泵运动特性,综合考虑了液体的可压缩性、氏效应、液体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。

The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.

最小测试压差不是依赖于流体粘度和压缩性，而是为隙度、渗透率和射眼半径的函数。

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单在高压时之可压缩性小，因而过的压缩，会导致单的崩塌。

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.

结合现场试验,根据直线电机采油泵运动特性,综合考虑了液的可压缩性、氏效应、液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方程组。

The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.

最小测试压差不是依赖于地层流和压缩性，而是为地层孔隙、渗透率和射孔孔眼半径的函数。

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单分子膜在高膜压时之可压缩性小，因过度的压缩，会导致单分子膜的崩塌。

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.

结合现场试验,根据直线电机采油泵运动特性,综合考虑了液体的可压缩性、氏效应、液体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。

The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.

最小测试压差不依赖于地层流体粘度和压缩性，地层孔隙度、渗透率和射孔孔眼半径的函数。

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。

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

The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.

最小测压差不是依赖于地层流体粘度和压缩性，而是为地层孔隙度、渗透率和射孔孔眼半径的函数。