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- pore pressure ratio 孔压比
- The amplitudes of pore pressure increased notably with the increase of cyclic stress ratio, and the residual pore pressure also increased obviously. 当循环应力比增大时，动孔隙水压力变化幅值显著增加，而残余孔压也较大。
- The parameters mentioned are defined for the first time,such as the ratio of pore pressure and upper formation pressure,the fracture extension grads,etc. 孔隙压力流体评价方法所涉及到的孔覆比和裂缝延伸梯度等参数均为首次定义。
- When the pore pressure is relatively high,the formate is used as a weighting agent to maintain a low-solid mud system. 在地层孔隙压力较高时,则配合使用甲酸盐进行加重,以维持一种性能优良的低固相钻井液体系。
- Besides, the undrained shear strength was increased slightly due to the negative pore pressure. 不排水条件下由于负孔隙水压力的存在，土样的表观强度略有增大。
- In the meantime, the pore pressure also increased with the increase of confining pressure. 同时，孔隙水压力值也随着周围压力的增大而明显增大。
- During the second stage, the excess pore pressure was dissipated under the constant loads. 固结阶段，土体在恒定荷载作用下，超孔隙气压和超孔隙水压逐渐消散而固结。
- A safety supervisory control of building dyke, i. e., pore pressure coefficient B-bar control method is introduced. 摘要简要介绍了一种软基上填筑堤坝施工安全的监控方法-孔压系数B值控制法。
- The doctor is measured with mercuric tonometer, when the hematic pressure ratio of Ms.Wen sees a doctor last even tall. 医生用水银血压计一量，温女士的血压比上次看病的时候还要高。
- The model can be used to determine formation pore pressure and the optimum drilling fluid density to stabilize borehole. 利用该模型可确定地层孔隙压力和保持井眼稳定的最优钻井液密度等参数。
- Another method to increase the pressure ratio prec/p is to increase the temperature and Mach number of the eject gas. 提高引射气体的温度及马赫数，也可增加扩压比。
- The residual strain is the additional shear strain created with the increase of pore pressure due to cyclic shear under initial shear stress. 残余应变是由于周期剪切引起孔隙压力增长;在初始剪力作用下产生的附加的剪应变.
- Formation drillability is related to formation compact degree and pore fracture degree,so NDR can reflect formation pore pressure state. 地层可钻性与地层的压实程度和孔隙破裂程度有关,因此NDR可以反映地层孔隙压力的情况。
- The correlation coefficient between plama ADH and urine-palsma osmotic pressure ratio was 0.86(P<0.05) in patients with DI. DI组确诊后一周内平均尿血渗透压值与血浆抗利尿激素水平有密切相关性 (相关系数r=0 86 ;P <0 0 5 )。
- By analyzing the results of the test the authors obtain a experiential curve about the coefficient of seepage, volumetric stress and pore pressure. 并经过分析可知，若其埋藏深度较浅，可以通过增加孔隙压来改善它的渗透性；
- Simone G,Roman MJ,Koren Mi,et al.Stroke volum/pulse pressure ratio and cardiovascular risk in arterial hypertension[ J ].Hypertension,1999,33:800-805. 蔡俊明;邓健忠;陈先辉.;社区干预对高血压患者卫生行为和疗效作用[J]
- The degradation of undrained shear strength is related to the cyclic strain and accumulated pore pressure produced by undrained clyclic loading. 并将波浪荷载作用使土样内孔压升高，有效应力降低，形成拟超固结现象的理论，应用到土样不排水抗剪强度衰减与平均累积孔压之间关系的分析；
- Velocity circulations at the trailing edges of each blade-row are optimized for overall maximization of total pressure ratio and isentropic efficiency. 优化目标为总压比和绝热效率最大，决策变量为转子和静子叶排尾缘速度环量。
- The study results show that the pore pressure and axial strain took on a fluctuant increasing process under cyclic shear loading. 研究表明，在循环荷载作用下，孔隙水压力和轴向应变均是一个波动上升的过程。
- The two stage turbocharging system has much higher efficiency under most operating conditions if the pressure ratio assignment is 1:1. 在大部分工况下压比分配为1:1时，所匹配的二级增压系统效率较高；
