geodetic leveling 中文意思是什麼

geodetic leveling 解釋
大地水準測量
  • geodetic : adj. ＝ geodesic 形容詞）-icallyadv.
  • leveling : n. 測平，校平；平整（土地）；水準測量。 a leveling instrument [mechanism] 水準儀。 a leveling machine （道路）整平機；【冶金】鋼板矯平機。
  1. Geodetic leveling should be done with staves in which the divisions are marked on a strip of invar.

    大地水準測量必須使用刻度標于不脹鋼片上的水準標尺。
  2. Permanent surveying markers as referred to in paragraph 1 of this article include wooden or steel signals and stone markers established at triangulation points, baseline points, traverse points, military control points, gravimetric points, astronomic points and leveling points of various orders and classes, as well as fixed markers used for topographic mapping, engineering surveying and deformation measurement, and installations at seabed geodetic points

    第一款所稱永久性測量標志，是指各等級的三角點、基線點、導線點、軍用控制點、重力點、天文點、水準點的木質覘標、鋼質覘標和標石標志，以及用於地形測圖、工程測量和形變測量的固定標志和海底大地點設施等。
  3. A description is made of the problems encountered in gps leveling measurement in this field and countermeasures. as observation of ground subsidence is made through measuring the relative movement of the observation stations, it is proposed to base the subsidence observation on change of geodetic elevation. check is made of the accuracy and reliability of this observation method by citing typical examples

    介紹了gps水準測量中的若干問題及其解決方法，結合開采沉陷監測需要的是相對變化量的特點，為避免坐標轉換造成的精度損失，提出了開采沉陷觀測中的下沉值可應用大地高的變化量代替的方法，並對其精度及可靠性進行了實例驗證。
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