equinoctial

基本解释

First, the locally optimal control laws are derived for each modified equinoctial orbital element.
研究了近地小推力转移轨道的制导问题,给出了一种基于局部最优控制律的自主制导算法。
Under a bland, equinoctial sky, the morning light lay evenly over the white concrete outside the entrance to the planetarium.
在温和、昼夜平分时的天空下，晨曦淡然地照耀在天文馆人口处外面的白色混凝土上。
Under a bland, equinoctial sky, the morning light lay evenly over the white concrete outside the entrance to the planetarium .
在温和、昼夜平分时的天空下，晨曦淡然地照耀在天文馆人口处外面的白色混凝土上。
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.
回顾了重力测量和卫星重力探测技术的发展和应用，阐述了描述低轨卫星状态的直角坐标、Kepler根数、Hill根数和Equinoctial根数之间的相互关系，认为Hill根数和Equinoctial根数能够避免由卫星轨道奇异带来的计算问题，分析了低轨卫星的受摄运动，给出了摄动模型。
the autumnal [vernal] equinoctial point
秋 [春] 分点