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- earth orbit period 地球轨道周期
- 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 orbit period depends on the altitude of the satellite. 卫星的轨道周期取决于其高度。
- 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。
- 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。
- The earth orbits the sun once every 365.25 days. 地球每365.;25天绕太阳轨道一圈。
- 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。
- 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。
- Simulation design is carried out according to the C-band small satellites formation, in one orbit period, the variation of interferometric baseline and the elevation precision are presented. 并基于C波段编队小卫星进行了仿真设计,给出了在一个轨道周期内,干涉基线的变化情况和测高精度变化的仿真结果。
- 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.
- Telstar I was an 87-cm,80-kg sphere placed in low-Earth orbit between 960 and 5140 km,with an orbital period of 158 min. 通讯卫星1号是87厘米;80千克的球体;放置在960到5140千米的近地轨道上;轨道周期为158分钟.
- Together in Earth orbit, the spacefaring combination was momentarily the third brightest sky light in view. 与地球轨道同步,太空上的联合体暂时成为了天空中第三亮的天体。
- With Callisto's orbital period of about half a month, the entire sequence could take less than a year. 由于木卫四绕木星公转的轨道周期约为半个月,整个过程只需不到一年。
- 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。