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单词 Galileo Regio
释义
Galileo Regio

Astronomy
  • A large dark area about 4500 km across on Jupiter’s satellite Ganymede, centred at +45° lat., 127° W long. It is crossed by an extensive parallel system of ancient ridged furrows 10–30 km wide with raised rims, and is prominent enough to be visible through large Earth-based telescopes. Galileo Regio has rounded hummocky terrain, suggestive of some erosive process.


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