TY - Journal of Yangtze River Scientific Research Institute A1 - CAO Shuai, NING Jin-cheng, YANG Qing-guo T1 - Relative Permeability Coefficient Model of Unsaturated Soil with Multiphase Flow Based on Fractal Theory Y1 - 2022-04-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 135 EP - 139 VL - 39 IS - 4 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20201141 ER -