... ( R ' - R'3 ) or so st Ast . Ost = ( RY - R ' ) " " R R ' or Ast = 3 R Ost ... ( 1.50 a ) But q ' = 2M AR ' 3 R4 Ost 2 M Ast = ( R – BEAMS CURVED IN PLAN 41.
確定！ 回上一頁
