TY - Journal of Yangtze River Scientific Research Institute A1 - LI Bo, LIN Zong-zong, YANG Liu T1 - Improvement of Iterative Method to Calculate Unbalanced Thrust Force Y1 - 2013-01-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 52 EP - 55 VL - 30 IS - 1 UR - http://ckyyb.crsri.cn N1 - 10.3969/j.issn.1001-5485.2013.01.010 ER -