对地 over the ground
- 他们还同意加入全球对地观测信息传播网,向他们所在的亚洲地区提供卫星传播。
They also agreed to join the GEONETCast network, so they will provide satellite broadcasts for their section of Asia. - "对地观测系统"由一系列卫星、一个科学组件和一个在三种轨道上支持协调一系列卫星的数据系统组成。
EOS consists of a series of satellites, a science component and a data system that supports a coordinated series of satellites in three kinds of orbits. - 太空升降机背后的核心理念包括降下一根电缆-- 也许是由小行星材料制成的,--从对地静止轨道到地球表面。
The central idea behind a Space Elevator involves lowering a cable -- perhaps constructed from asteroid material -- from geostationary Earth orbit to the surface of the Earth.
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