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satellites in space help us on earth 包含80318个检索结果
into space. On Feb 21, for example, US company SpaceX took 46 satellites into orbit (轨道). On Feb 27...) sent into space. On Feb 21, for example, US company SpaceX took 46 satellites into orbit (轨道 ……
2022年03月13日
into space. On Feb 21, for example, US company SpaceX took 46 satellites into orbit (轨道). On Feb 27... of satellites (卫星) sent into space. On Feb 21, for example, US company SpaceX took 46 satellites into orbit ……
2022年03月20日
into space. On Feb 21, for example, US company SpaceX took 46 satellites into orbit (轨道). On Feb 27, China sent 22 satellites into space. Why do we need so many satellites? What do they do for us?At present ……
2022年03月20日
. their small, inexpensive Earth-orbiting satellites can help people travel to spaceD. their new...A rocket (火箭) soars into space. It releases a satellite (人造卫星) which circles around Earth ……
2009年01月18日
. their small, inexpensive Earth-orbiting satellites can help people travel to spaceD. their new...A rocket (火箭) soars into space. It releases a satellite (人造卫星) which circles around Earth ……
2009年01月18日
. their small, inexpensive Earth-orbiting satellites can help people travel to spaceD. their new...A rocket (火箭) soars into space. It releases a satellite (人造卫星) which circles around Earth ……
2009年01月18日
that a recent collision of Russian and US satellites raise concerns about the swarms of hazardous items... Earth, far below the point of collision.But NASA's Hubble Space Telescope and Earth observation ……
2009年02月17日
. It will help scientists study the moon.What is a satellite?Satellites go around largerobjects(天体) in space.Some satellites are natural. For example, the moon is a satellite of the Earth. People make other ……
2007年10月07日
. It will help China build a manned space station (载人空间站) above Earth in the near future.Congratulations... large satellites and space station parts to low-Earth orbit (近地轨道), such as the space lab of the manned ……
2020年05月18日
首次卫星相撞:太空中的交通事故。
the Earth. There are satellites (old and new), spacecraft and other objects.There are also more than 50,000 unrecorded.The US and Russia have put the largest number of objects in space. Both countries …… 2009年02月22日
join and help them in designing and building!What do CubeSats do?These cube-shaped (立方体形状的) satellites... challenge facing researchers is to find ways to bring the satellites back to Earth. If they were left ……
2009年01月18日
join and help them in designing and building!What do CubeSats do?These cube-shaped (立方体形状的) satellites... challenge facing researchers is to find ways to bring the satellites back to Earth. If they were left ……
2009年01月18日
美俄卫星太空大碰撞,上演现实版"星球大战"。
.Just recently, above planet Earth, in outer space, a story a little like a Star Wars movie, unfolded.A US satellite and a burnt-out Russian satellite ran into each other, creating clouds of space …… 2009年02月22日
observe (观察) changes on the Earth, such as earthquakes. With the help of satellites (卫星), children can...? And why is it important? Let’s find out together.IN the space, about 415km above the Earth ……
2013年12月01日
satellites farther out into space, perhaps to eliminate the possibility of them being shot down or attacked. Many spy satellites now orbit at a little more than 160 kilometres above the Earth ……
2001年07月10日
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