G=∑h+H4-H =13.70+46.54-60.32=-0.08m P117-16(3) D 点距离4高差中数改正数改正后高改正后高程 号(mnm) (m)e(cm) 213 12.56 58.934 P1186.734-6.82 24 6.804 52.13 P24204.8240.77 24 52.924 P3113.6147.39 7.404 60.32 B 718.8013.704 8 13.78P117-16(3) i h i h A B D D f v m f h H H   = − = + − = − = + − 13.70 46.54 60.32 0.08