emission nebula

名词 n.
中文释义

英文释义

名词 n.
  1. A nebula composed of ionized gases which produce visible light (as distinct from a reflection nebula, which reflects the light produced by neighboring stars).
    — The Orion nebula is an emission nebula—it glows with its own light.

词形变化

emission nebulae plural emission nebulas plural
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