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- Earth Orbit Plane 地球轨道平面
- We sent an unmanned rocket into earth orbit. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- One year is one Earth orbit around the Sun. 一年就是地球绕太阳一周的时间。
- The Soviet Union put the first satellite into Earth orbit. 苏联发射了第一颗人造卫星进入地球轨道。
- Almost parallel to the orbital plane. 自转轴几乎和公转平面平行。
- Almost perpendicular to the orbital plane. 几乎和公转平面垂直。
- Vicarious Calibration of an Ocean Salinity Radiometer from Low Earth Orbit. 地球低轨道海洋盐分辐射表的替代校准。
- The first two Rangers, launched in 1961, never got out of earth orbit. 最初的两艘游骑兵太空船,在1961年发射,始终没有脱离地球轨道。
- The two satellites were placed respectively in LEO (low earth orbit) and geostationary transfer orbit. 两颗卫星分别进入近地轨道和地球同步转移轨道。
- We now know that Earth orbits the sun elliptically and, at the same time, spins on an axis that is tilted relative to its plane of orbit. 现在我们知道,地球绕太阳转的轨道是椭圆的而且其自转轴于轨道面是倾斜的。
- As a result, Uranus seems to be rolling on the orbital plane. 换句话说,天王星就好像是在公转轨道上滚动著。
- The earth orbits the sun once every 365.25 days. 地球每365.;25天绕太阳轨道一圈。
- Either of two points at which the orbit of a satellite intersects the orbital plane of a planet. 轨道交点卫星的轨道与行星的轨道面相交的两点中任何一点
- Periapsis in Earth orbit,the point in its orbit where a satellite is nearest to the Earth. 以地球为中心的最近点,人造卫星轨道上离地球中心最近的点。
- Conversely, astrometry works best when a planetary system is "face-on" when seen from Earth, because then the star's movements in the orbital plane are most pronounced. 与之相反,从地球看去行星系统是“面向”的时候天体测量最有效,因为此时恒星在轨道面上的运动最显著。
- Within weeks, the Soviets launched another satellite into Earth orbit, Sputnik Two. 仅在几个星期内,苏联就发射了第二颗卫星??史泼尼克2号??进入地球轨道。
- Withthe enhancement of the space militarization, it is necessary to know the present low earth orbit satellites. 随着太空军事化趋势的日益增强,了解和认识当前的低轨道卫星较为必要。
- Launch vehicle: Rocket system that boosts a spacecraft into Earth orbit or beyond Earth's gravitational pull. 运载火箭:将航天器推入绕地球轨道或脱离地球引力范围的火箭系统。
- Orion will dock with the lunar module in Earth orbit, and the Earth departure stage will propel both to the moon. 猎户座"飞船将与低地球轨道上的登月舱对接,由地球出发站将两者送往月球。
- International Space Station in near Earth orbit, NASA astronauts carried out space walks and lost a bolt and a watcher. 在国际空间站接近地球轨道的地方;NASA的宇航员完成了太空行走;迷失了一个螺钉和一个观测仪.