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Terms containing
celestial reference
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Subject
English
Chinese
mil.
celestial reference
天文定向基准
space
celestial reference
天体定位基准
mil.
celestial reference
天文定向物
earth.sc.
celestial reference
frame
天体参考坐标系
space
celestial reference
system
天体参考系
survey.
international
celestial reference
frame
国际天球参考架
earth.sc.
International
Celestial Reference
Frame
国际天球参考框架
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