advanced orbiting solar observatory
先进轨道太阳观测台
advanced orbiting astronomical observatory
高级轨道天文观测台
Maya priests observed the positions of the sun, moon, and stars. They made tables predicting eclipses and the orbit of the planet Venus.
玛雅祭司观察太阳，月亮和恒星的位置。他们用工作台来预知日蚀和行星金星的轨道。
intraplanetary space
行星轨道与太阳间空间
Study on Driving Laws of Sun Synchronous Orbit Satellite's Solar Arrays
太阳同步轨道卫星的太阳帆板驱动律
the time for the earth to make one complete revolution around the sun, relative to the fixed stars.
以恒星为基准测定的地球在环绕太阳的轨道上公转一整周的时间。
(astronomy) having an orbit farther from the sun than the Earth's orbit.
（天文学）距离太阳轨道比距离地球轨道远的。
Study on Orbit Dynamics and Control of Solar-Sail Spacecraft
太阳帆航天器的轨道动力学和轨道控制研究
large orbiting earth resources observatory
大轨道地球资源观测
ancient. sunspot observation
太阳黑子的古代观测
IASY (International Years of the Active Sun)
太阳活动期国际观测年
and follows an orbit round the sun,
它依循一定的轨道绕着太阳运转，
The Earth's path round the sun is elliptical.
地球绕太阳的轨道是椭圆形的。
The path of the earth around the sun is oval.
地球围绕太阳公转的轨道是椭圆形的。
The earth orbits the sun once every 365.25 days.
地球每365.25天绕太阳轨道一周。
The earth orbits the sun once every 3 6 5 . 2 5 days .
地球每３６５。２５天绕太阳轨道一周。
The Solar X-EUV Imaging Telescope Aboard the Geostationary Orbit Satellite;
静止轨道卫星太阳X-EUV成像望远镜
Uses of Solar Radiation for Formation Flying Control Around the Sun-Earth Libration Point
利用太阳光压力进行Halo轨道编队控制