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- The earth takes a year to orbit the sun. 地球绕太阳一周要一年的时间。
- Jr. was the first American to orbit the earth. 是第一位沿地球轨道绕行的美国人。
- Sputnik was the first man-made satellite to orbit the earth. 人造卫星是第一个围绕地球旋转的人造物体。
- The earth orbits the sun once every 365.25 days. 地球每365.;25天绕太阳轨道一圈。
- Colossal computer-controlled mirrors, thousands of feet across, may one day orbit the earth, refl... 总有一天电脑能够把晚上变成白天,通过好的,自然的阳光。
- "I'd like to see all the sugared drinks sent out into space, where they could orbit the Earth forever. 我狠不得把世界上所有的含糖饮料都发射到太空去,让它们永远围绕地球转吧!”
- Colossal computer-controlled mirrors, thousands of feet across, may one day orbit the earth, reflecting sunlight onto a darkened United States. 由计算机控制的巨型反射镜,直径达上万英尺,将来会环绕地球运行,把阳光反射到夜幕笼罩的美国。
- Because of the ellipticity of the earth's orbit the solar radiation incident on the earth is about 7% greater in December than in June. 因为地球轨道是椭圆,入射到地球上的太阳辐射在12月份约比6月份多7%25。
- Because of the ellipticity of the earth's orbit the solar radiation incident on the earth is about 7 % greater in December than in June. 因为地球轨道是椭圆,入射到地球上的太阳辐射在12月份约比6月份多7%25。
- After a decade of preparation, China will launch its first human being into space on October 15 in a 90-minute flight that will orbit the Earth once. 经过十年的准备,我国将在本月15日首次发射载人航天飞机,预计载人航天飞机将会在历经90分钟的飞行后抵达地球轨道运行。
- The moon orbits around the Earth; The planets are orbiting the sun. 月亮绕地球转;行星正绕太阳转。
- The Soviets had much more thrust power;they launched the first inhabited capsule with a dog in it,and then in 1961 made Cosmonaut Yuri Gagarin the first human to orbit the earth. 苏联一路高歌猛进:他们发射了第一艘载人飞船,当时其中搭载的是一只狗,接着于1961年让尤里·加加林成为首位进入地球轨道的宇航员。
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- These devices are used in satellites that orbit the Earth within the Van Allen Radiation Belts and must be able to work in a continuous low-radiation environment. 这些装置用于在“范·艾伦辐射带”内沿一定轨道绕地球运行的卫星上,它们必须能在持续低辐射的环境中正常工作。
- 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 man-made satellite orbits the earth every 48 hours. 那颗人造卫星每48小时绕地球轨道运行一周。
- As each spacecraft orbits the Earth it emits a carrier wave. 每一个航天器绕地球轨道运转的时候,它会发射一种载波。
- The attraction of the moon for the earth causes the tides. 月球对地球的吸引力造成潮汐。
- OCO will similarly study carbon dioxide and also oxygen signatures in reflected sunlight.It will fly at an average altitude of 705km and orbit the Earth about every 99 minutes. 同样,OCO也会研究太阳反射光线中的二氧化碳和氧气特征光谱,它将于705公里的上空以99分钟绕地球一圈的速度飞行。
- In April 1961, Russian cosmonaut Yuri Gagarin marked the first chapter in manned space flights in human history by becoming the first man to orbit the Earth for seven days. 1961年4月12日,苏联宇航员加加林乘坐东方一号航天船绕地球一周,谱写了人类载人航天发展的首页 医学 教育网搜集整理 。