H II region

名词 n.
中文释义

英文释义

名词 n.
  1. A large nebula of gas and plasma of glowing low density in which star formation has recently taken place.

词形变化

H II regions plural H_(II) region alternative HII region alternative H-II region alternative

词源

From a being region of space having H_(II) emission lines in its spectrum.
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