重力向下延拓 的英文怎麼說
中文拼音 [zhònglìxiàngxiàyántà]
重力向下延拓
英文
downward gravity- 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
- 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
- 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
- 拓 : 拓動詞（把碑刻、銅器等的形狀和上面的文字、圖形印下來; 拓印） make rubbings from inscriptions pict...
- 重力 : [力學] gravity; force of gravity; gravity force; power of gravity; pull of gravity; gravitational...
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For solving the problems that downward continuation of the space gravity anomaly can not be used in downward continuation of sea surface gravity anomaly, on the basis of prey principle used to compute gravity in the surface - layer of the earth, and with considering the density of sea water and sea bottom topography, two new methods are proposed
摘要針對空間重力異常向下延拓方法不適用於海面重力異常向下延拓的問題，根據珀雷原理求地球表層內部重力的方法、海水密度及海底地形的特徵，提出了兩種海面重力異常向下延拓的演算法。The ill - posed problems include the ill - conditioned and the rank - deficient ones in geodesy, which exist widely in gps data processing, deformation analysis, geodesy inversion, gravity field continuation downward, and so on
大地測量中的不適定問題包括病態問題和秩虧問題，它廣泛存在於gps數據處理、形變分析、大地測量反演、重力場向下延拓等領域。Discrete approach with 15 ' 15 ' grid is adopted in order to numerically simulate and calculate the gravitational potential field generated by the homogeneous rotation - symmetric ellipsoid, and it is verified that the method, the fictitious compress - recovery and the fictitious downward continuation of the gravitational field, is reliable and valuable at the relative accuracy level higher than 10 ^ ( - 4 )
摘要採用15 ' 15 '網格離散化手段對均質旋轉對稱橢球體產生的引力位場進行了數值模擬計算，在相對精度優於10 ^ （ - 4 ）的水平上，驗證了引力位虛擬壓縮恢復法以及重力場虛擬向下延拓法的可靠性和有效性。
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