常見例句雙語例句The effects of surface vertical displacements and gravity changes upon the geoidal height variation have been also discussed.討論了表面垂直位移和重力變化對(duì)大地水準(zhǔn)面高變化的影響。This paper has discussed how to select geoidal model and how to determine normal height in GPS survey of long distance transmission line project.就長距離超高壓送電線路工程的GPS測量中如何選擇大地水準(zhǔn)面模型，如何確定GPS測量的高程等問題進(jìn)行了討論。This paper focuses on the study of the height transference within long distance across sea, by combining ellipsoidal height of GPS with gravimetric geoidal height.研究了利用GPS定位技術(shù)所確定的相對(duì)大地高差，聯(lián)合精確的大地水準(zhǔn)面差距進(jìn)行高程傳遞的方法。 返回 geoidal height