Read Edit View history 发射星云 fāshèxīngyún emission nebula Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 发射星云/ 發射星雲 fāshèxīngyún emission nebula 猎户座大星云是一个著名的发射星云。 Edit Delete References Add reference No references for this word.