短語詞組短語surface porosity factor 表面孔隙率factor porosity 孔隙率factor of porosity pattern 因子模型factor of porosity sheaf 商層factor of porosity ring 商環(huán)factor of porosity theorem 因子定理factor of porosity scale 標度因子factor of porosity transformation 因子變換factor of porosity structure 因子結(jié)構(gòu) 返回 porosity factor