Fraunhofer lines

来自Wikimedia Commons
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English: Fraunhofer lines

Photographs

[编辑]
  • Stamp 1987
    Stamp 1987

Vector graphics

[编辑]
  • English version
    English version
  • Deutsche version
    Deutsche version
  • French version
    French version
  • Indonesian version
    Indonesian version
取自“https://commons.wikimedia.org/w/index.php?title=Fraunhofer_lines&oldid=711125247”