高程 hB = 21.726 m,C 點高程hC = 23.493 m,觀測得AD 點間之測線長. L1 = 350 m,高程差Δh1 = -2.582 m,BD 點之測線長L2 = 700 m,高程差. Δh2 = 0.013 m,CD 點之 ...
確定! 回上一頁