earth based coordinate system 地球坐标系 ; 地球座标系
earth based coordinates 地球坐标 ; 地球座标
earth-based interferometer 地面干涉仪 ; 地球潮汐
earth based 地面的
Hand-dug earth-based 人工挖基础土方
earth-based telescope 地面望远镜
earth-based station [航] [通信] 地面站
earth-based system 地面系统
earth-based guidance 地面制导
"Even in the best scenario of supply, these [rare earth-based] magnets are very expensive," Mr. Crane said.
“即便是供应情况最好的时候，利用稀土材料制成的磁钢也是非常昂贵的，”Crane说。
SOFIA will complement the Hubble, Spitzer, Herschel and James Webb space telescopes and major Earth-based telescopes.
索菲亚将弥补诸如哈勃、史匹哲、赫歇尔和詹姆士·韦伯一系列天文望远镜以及主要的地面望远镜的不足。
The difficulty is the viewing geometry that puts any Trojan, from the perspective of an Earth-based telescope, in bright skies.
观测特洛伊小行星的难点在于，在通过地面望远镜观测时，几何角度总是使其位于明亮的天空中。
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