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- The influence of confining pressure change and coal cleat on gas permeability is studied by experiments. 本文介绍了钏路煤层及相关割理系统的特性,通过试验研究了围压变化和煤层割理对气体渗透性的影响。
- The coulometric method is applicable for a gas permeability test of only two materials as the alternative method. 在库仑法适用于气体渗透试验的仅有的两个材料的替代方法。
- The membranes were characterized by SEM, TG, nitrogen absorption and gas permeability measurement. 氮吸附和气体渗透性能测试装置对其进行了表征。
- A homemade device to measure gas permeability is used to study the gassy sand encountered in Hangzhou Metro Project. 以杭州地铁所遇的储气砂为研究对象，利用自制的渗气性量测装置对其进行了系统的试验研究。
- Likewise, diffusion-controlled processes such as gas permeability are all dependent, to some extent, on molecular orientation and crystallinity. 同样，扩散控制诸如透气在一定程度上取决于分子排列和结晶度。
- By analyzing BF operation data,it was proved that the limitative factor of BF operation intensity is the gas permeability of bosh(bosh gas nidex). 通过分析高炉的生产数据,总结出了限制高炉强化的因素是高炉内煤气通过炉腹的能力。
- By analyzing BF operation data, it was proved that the limitative factor of BF operation intensity is the gas permeability of bosh(bosh gas nidex). 摘要通过分析高炉的生产数据，总结出了限制高炉强化的因素是高炉内煤气通过炉腹的能力。
- Hollow fiber membranes with good gas permeability can be obtained after the extraction of the paraffin oil and stretching to a small extension. 将石蜡油提取掉后稍加拉伸即可得到透气性很好的微孔中空纤维渗透膜。
- PVC flocking materials used by high-frequency hot press molding, gas valve back up, with both gas permeability and gas leak-proof function. 用植绒PVC料经高频热压成型，倒阀门气嘴，具有双层防漏气渗气功能。
- Comparing with the dry density, influence of the saturation degree on gas permeability of shallow gassy sand is more significant. 饱和度的变化相对于干密度对储气砂土的渗气性影响更为显著。
- In the early unloading, the degressive gradient of coal gas permeability is greater at lower temperature than at high temperature. 在卸载初期，温度较低时煤瓦斯渗透率下降梯度比高温时大，渗透率值较高；
- Main products: Automatic Gas Permeability Tester, Auto Water Vapour Permeability Tester, Gas Permeability Tester, PC. Auto Tensile Tester, Friction/Peel Tester, Thickness Tester. 主要产品有透湿量测定仪、透气性测试仪、容器/薄膜透氧仪、透湿性测试仪、容器/薄膜透氧仪、PC型智能电子拉力试验机、摩擦系数/剥离试验仪、测厚仪、撕裂度仪、热封梯度仪。
- The gas permeability of EBR which have the same epoxide number decline with the amount of carbon black and sulphur , and increase with the amount of plasticizer . 同一环氧值的EBR硫化胶气密性随配方中炭黑、硫磺用量的增加而升高，随增塑剂用量的增加而降低。
- Gas permeability coefficient is decreasing with the increasing of the amount of silica filler, and the particle size plays an important role on gas molecular diffusion. 二氧化硅作为填料,随着添加量的增加,膜的渗透系数降低,且其粒度的大小对气体分子的扩散起重要作用。
- Gas drainage in high gassy coal seam with low gas permeability is always an hard solved significant technology problem in the process of safety production. 高瓦斯低透性煤层的瓦斯抽放,一直是煤矿安全生产过程中的重大技术难题。
- It states that this entire diameter rock gas permeability testing calibrator can be applied to all rock permeability testing device of different specifications at present. 指出,全直径岩石气体渗透率测试仪标定器适用于目前各种规格岩石渗透率测试仪器的标定。
- Some properties of fabrics concerning comfortability such as stiffness, water vapor permeability, gas permeability, coefficience of drapability were detected. 在化学作用的同时加以机械作用，可得到更好的开纤效果。
- PVDF/graphite conductive composite bipolar plate were prepared by mold pressing in high temperature.Electrical conductivity, flexural strength and gas permeability were measured. 摘要采用聚偏氟乙烯(PVDF)与导电填料石墨复合，通过高温模压方法制备了导电复合材料双极板，测量了双极板的电导率、弯曲强度和气密性。
- Abstract By analyzing BF operation data, it was proved that the limitative factor of BF operation intensity is the gas permeability of bosh(bosh gas nidex). 摘要 通过分析高炉的生产数据，总结出了限制高炉强化的因素是高炉内煤气通过炉腹的能力。
- The chitosan-konjac glucomannan blending modification was studied, and mechanical properties, gas permeability, and transmittance of the blending membrane were tested. 摘要对壳聚糖-葡甘聚糖共混改性进行了研究，并对共混膜的力学性能、透气性、透过率进行一系列的性能测试。
