A.1:2000~1:20000 B.1:500~1:2000 C.1:1000~1:2000 D.1:2000~1:50000
A.1:2000~1:20000 B.1:500~1:2000 C.1:1000~1:5000 D.1:2000~1:50000
A.海水水深 B.當地地面高程 C.全國地面高程 D.當地潮汐的潮高