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- The results indicate, gradation and particle size of aggregate, mass ratio of aggregate to cement are the key factors affecting porosity, permeation coefficient and compressive strength of PPC. 结果表明：骨料粒径与级配、骨灰比是影响多孔透水混凝土空隙率、透水系数与抗压强度的关键因素；
- The mixing process of cement paste encapsulating aggregate method could improve the compressive strength of PPC and reduce its porosity while keeping its permeation coefficient stable. 水泥裹石法搅拌工艺对多孔透水混凝土的透水系数影响不大，但能使其抗压强度提高、空隙率下降。
- Oxygen permeating coefficient is only half of the original film. 透氧性能测试显示，氧气渗透系数为原薄膜的一半。
- METHODS: Mucosa absorption experiment and deposit effect were made on a two cells diffusion apparatus in vitro to calculate permeation coefficients. 方法:在双室透皮扩散装置上进行体外透粘膜吸收试验,计算渗透系数。
- The permeability of N-2,H-2 and CO-2 across the membrane were controlled by Knudsen diffusion,and the memebrane exhibited outstanding hydrophilicity since their permeation coefficients of H-2O/N-2 are higher than the Knudsen diffusion values. N2 、H2 和CO2 在膜内渗透由Knudsen扩散控制 ;H2 O N2 分离因子均大于Knudsen扩散值 ;表现出良好的亲水性 .
- The relative factors are discussed:maximum allowable pressure inside the site, permeating coefficient of of MSW,bio-gas production rate, diameter of the well, etc. 同时讨论了影响控制范围的各主要因素：垃圾层中最大允许压力、垃圾层的透气性能、垃圾的产气速率等。
- Keywords inorganic micropore membrane;permeation coefficient;Knudsen number;transfer characteristic; 无机微孔膜;渗透系数;努森系数;传递特性;
- Keywords Polyalkylenebenzimidazole;Solution polycondensation;Gas permselective membrane;Gas permeation coefficient;Gas separation coefficient; 含脂肪链聚苯并咪唑;溶液缩合聚合;气体分离膜;气体透过系数;气体分离系数;
- permeation coefficient 透水系数
- Water has a variable coefficient of expansion. 水的膨胀系数是可变的。
- Pascal published a treatus on binomial coefficient. 帕斯克发表了关于二项系数的论文。
- Cancel water vapour permeability coefficient. 取消了水蒸气渗透系数。
- Water is variable in coefficient of expansion. 水的膨胀系数是可变的。
- The influence of pH on the permeation of DHE was very complex. pH对DHE渗透的影响很复杂，在pH3和9透皮流率明显快于pH5和7。
- Functional coefficient of biological cycle: FCBC. 生物循环功能系数。
- Note: Underlined parts are direct path coefficient. 注:划线的为直接通经系数。
- Metal hose, on the other hand, does not allow permeation. 而金属软管是不容许渗透。
- Ratio of lift coefficient to drag coefficient. 升力系数与阻力系数的比值。
- The influence of coating on gas permeation flux was investigated. 考察了涂层前后对气体渗透通量的影响。
- Also ow coefficient of surface friction. 较小的表面摩擦系数。
