Terrestrial Time (replaced Ephemeris Time, ET)
英文缩写:TT
英文全称:Terrestrial Time (replaced Ephemeris Time, ET)
中文释义:Terrestrial Time (replaced Ephemeris Time, ET)
所属分类:Academic & Science
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英文缩写:TT
英文全称:Terrestrial Time (replaced Ephemeris Time, ET)
中文释义:Terrestrial Time (replaced Ephemeris Time, ET)
所属分类:Academic & Science