1 D (cos B-osin B)+osina 1+ P cos B cosa+ q 1+q2h D DD 1 sin B+ cosa 0 2 2L 将sma=1-2hm可求出 h =0.18~0.26 D D D L个→、D2 个 h 个 D D9/10                      = − − =         +         − + +         − + −       − + 2 1 2 2 0 2 1 2 2 sin 1 0 2 cos 2 1 1 sin 1 cos cos 1 sin 2 1 (cos sin ) D h L L D h D L D h D h L D L D L h L L L D w w 将 w 可求出 w                 ＝0.18 ~ 0.26 D hw