Equation Icon  [ ] 4 G2m2ndm ( 1 ) m yi1 = yi12 m2 + 3g2ndm - --------5---vi12 + O -6 , 5 r12c c 2 2 ( ) (143) m yi = yi [-m1 + 3g2ndm] - 4-G-m--ndm--vi + O 1- . 2 12 5 r12c5 12 c6