A、49.012m B、95.724m C、-95.724m D、-49.012m
A、B的高程为417.460m; B、B点的高程为417.469m; C、往、返测高差闭合差为+0.014m, D、B点的高程为417.467m
A、B的高程为417.460m B、B点的高程为417.469m C、往、返测高差闭合差为+0.014m D、B点的高程为417.467m