equinoctial

基本解释

First, the locally optimal control laws are derived for each modified equinoctial orbital element.
研究了近地小推力轉移軌道的制導問題,給出了一種基於侷部最優控制律的自主制導算法。
Under a bland, equinoctial sky, the morning light lay evenly over the white concrete outside the entrance to the planetarium.
在溫和、晝夜平分時的天空下，晨曦淡然地照耀在天文館人口処外麪的白色混凝土上。
Under a bland, equinoctial sky, the morning light lay evenly over the white concrete outside the entrance to the planetarium .
在溫和、晝夜平分時的天空下，晨曦淡然地照耀在天文館人口処外麪的白色混凝土上。
Development and applications of gravimetry and satellite-borne gravimetry are reviewed. Relations among the rectangle coordinates, Keplerian elements, Hillian elements and Equinoctial elements to describe the motion of low earth orbit satellite are given.
廻顧了重力測量和衛星重力探測技術的發展和應用，闡述了描述低軌衛星狀態的直角坐標、Kepler根數、Hill根數和Equinoctial根數之間的相互關系，認爲Hill根數和Equinoctial根數能夠避免由衛星軌道奇異帶來的計算問題，分析了低軌衛星的受攝運動，給出了攝動模型。
the autumnal [vernal] equinoctial point
鞦 [春] 分點