TY - Journal of Yangtze River Scientific Research Institute A1 - PENG Zi-mao, HUANG Zhen T1 - A Relative Permeability Model for Unsaturated Flow in Consideration of Hysteresis Effect Y1 - 2020-07-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 115 EP - 119 VL - 37 IS - 7 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20190424 ER -