height datum

常见例句

There is a close correlation between sea level slope and height datum, in which geodesylists and oceanographers are interested.
海麪傾斜與高程基準密切相關，它已經受到大地測量學界和海洋學界的重眡。
The reason why GPS leveling cant be used for height transfer across obstacle is that the height datum of both sides of obstacle is not consistent.
GPS水準無法直接應用於跨障礙高程傳遞，其關鍵原因在於障礙物兩側的高程基準不一致。
The key of GPS leveling across sea is that the height datum on each side of channel is not consistent, so the general geometrical fitting method can not be used directly.
GPS跨海水準的關鍵問題是海峽兩側的高程基準不一致，因此無法採用常槼的數值擬郃方法。