结果表明：RPC具有非常低的孔隙率，其气体渗透系数比传统混凝土的低1 ~ 2个数量级。
Results indicate that RPC possesses very low porosity and its air permeability is lower by 1-2 magnitudes than that of conventional concrete.
认识到溶解度的气体是更大的，在液体状态，比在固体状态下，受焊缝孔隙率是相关的熔合区的讨论。
Recognizing that the solubility of gas is greater in the liquid state than in the solid state, the subject of weld porosity is relevant to fusion zone discussion.
采用自制装置分别测定了孔径分布、平均孔径、孔隙率和气体通量。
The pore size distribution, the average pore size, the porosity and the gas flux were determined.
结果表明：随着烧成温度的提高，孔隙率、气体通量及抗弯强度下降，孔径分布变宽。
The results showed that the porosity, the gas flux and cross-bending strength decreased, and the pore size distribution had a decrease with the increasing of sintering temperature.
这种介质中的气体渗流同时受到介质的特征粒径、粒径分布指数和孔隙率的影响。
The gas seepage in the medium is influenced by characteristic particle size, particle size distribution index and porosity simultaneously.
研究表明气体反压力与多孔介质的透过率(即孔隙率和孔径)、渗流速度、渗流长度有关。
The research shows that anti pressure of the gas is concerned with the permeability of porous medium (the porosity and the hole diameter), the infiltration speed, and the infiltration length.
研究了配料组成和前驱体成型压力对多孔碳板的气体透过性能、孔隙率、和电导率等指标影响。
The effects of composition and pressure of its precursor on the properties, such as gas permeability, porosity, and electric resistivity, were studied.
讨论了质子交换膜燃料电池运行电流密度和温度、阴极和阳极加湿温度、气体扩散层孔隙率等参数对以上结果的影响。
The effect of the current density and fuel cell temperature, humidified temperature of cathode and anode, porosity of porous diffusion layer on the results mentioned above are discussed.
分析了比表面积、平均孔径、孔隙率等孔隙特性参数对扩散的影响，获得了分形多孔介质中气体扩散系数与平均孔径的函数关系。
The effect of pore characteristics on gas diffusion was analyzed. The relationships between the specific area, average pore diameter and porosity with the diffusion coefficient were obtained.
分析了比表面积、平均孔径、孔隙率等孔隙特性参数对扩散的影响，获得了分形多孔介质中气体扩散系数与平均孔径的函数关系。
The effect of pore characteristics on gas diffusion was analyzed. The relationships between the specific area, average pore diameter and porosity with the diffusion coefficient were obtained.
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