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单分子在高压时之可压缩性小，因而过度压缩，会导致单分子塌。

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特性,综合考虑了液体可压缩性、氏效应、液体连续流条件和球阀力特性,建立了直线电机采油泵球阀运精确运微分方程组。

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小，因而过度的压，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,综合考虑了液体的可压、应、液体连续流动条件和球阀的动力特,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度和压，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单分子膜在高膜时之可缩性小，因而过缩，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运动特性,综合考虑了液体可缩性、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分。

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和缩性，而是为地层孔隙、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单分子膜在高膜时之可缩性小，因而过缩，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运动特性,综合考虑了液体可缩性、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分。

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和缩性，而是为地层孔隙、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DPPC单分子膜在高膜压时之可压缩性，因的压缩，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。

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.

测试压差不是依赖于地层流体粘和压缩性，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。

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，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.

最压差不是依赖于地层流体粘度和压缩性，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地流体粘度和压缩性，而是为地度、渗透率和射眼半径的函数。