常見例句First, the locally optimal control laws are derived for each modified equinoctial orbital element. 研究了近地小推力轉(zhuǎn)移軌道的制導問題,給出了一種基於侷部最優(yōu)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(wèi)星重力探測技術(shù)的發(fā)展和應用，闡述了描述低軌衛(wèi)星狀態(tài)的直角坐標、Kepler根數(shù)、Hill根數(shù)和Equinoctial根數(shù)之間的相互關(guān)系，認爲Hill根數(shù)和Equinoctial根數(shù)能夠避免由衛(wèi)星軌道奇異帶來的計算問題，分析了低軌衛(wèi)星的受攝運動，給出了攝動模型。the autumnal [vernal] equinoctial point 鞦 [春] 分點Diagram on the plane of the equinoctial 赤道平麪圖 返回 equinoctial