英语词典
The first-order relative position equations are expanded as trigonometric series with eccentric anomaly as the angle variable. Except the terms of order one, the trigonometric series' amplitudes are geometric series, and corresponding phases are constant both in the radial and in-track directions.
通过将相对位置方程的径向和横向分量以偏近点角为变量展开为三角级数,发现除了一阶项外,三角级数的幅值为等比数列并且相角为定值。
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