geodesic datum 中文意思是什麼

geodesic datum 解釋
大地基準點
  • geodesic : adj. 1. 大地測量學的。2. 【數學】(最)短線的。n. 【數學】= geodesic line.
  • datum : n. (pl. data ) 〈拉丁語〉1. 〈常 pl. 〉 數據,資料。2. 論據,作為論據的事實。3. 【數學】已知數。4. 【測】基點,基線,基面。
  1. Geoid is the reference datum of spatial data collection, so how to ascertain the geoid, that of all over the world, that of one nation, or that of one zone, is always an nuclear task of surveying science but there is not the quick and automatic solution. the density of the required data of astronomical measurement, gravimeter survey and geodesic survey is not satisfied

    大地水準面是空間測量數據外業採集所依據的參考基準面。確定全球、一個國家、一個地區的大地水準面的形狀始終是測繪科學的一項核心內容,一直未能有快速、簡潔、自動的解決方法。需要的天文測量、重力測量、大地測量等數據的密度無法滿足其需要。
  2. Then the non - interventional condition is that the relative geodesic curvature is zero. furthermore, for the transmission of the parallel or crossing axles, if the datum surface is the pitch one, the non - interventional condition is naturally satisfied

    考慮到平行軸的法向圓弧齒輪傳動已臻成熟,論文重點研究了相交軸與交錯軸條件下法向圓弧齒輪傳動的基本方案。
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