TY - Journal of Yangtze River Scientific Research Institute A1 - YANG Shi-kou, AI Hua-dong T1 - Essential Boundary Treatment of Three-dimensional Numerical Manifold Method Y1 - 2022-03-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 137 EP - 142 VL - 39 IS - 3 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20201243 ER -