特殊用法absolute permeability1.绝对透气性[渗透性, 导磁率]capillary permeability1.毛(细)管渗透性incremental permeability1.微分磁导率; 磁导率增量initial permeability1.起始磁导率ion permeability1.离子渗透性magnetic permeability1.导磁率[系数, 性]maximum permeability1.最大导磁率[系数]moisture permeability1.透湿性, 透水汽性normal permeability1.正常导磁率organic-vapour permeability1.有机物蒸汽透过性relative permeability of bed1.床层的相对透过性reversible permeability1.可逆磁导率selective permeability1.选择性通透性space permeability1.真空导磁率water vapo(u)r permeability1.水蒸汽渗透性, 透湿性permeability of water1.透水性