河外星云 héwàixīngyún extragalactic nebula Definitions Defs Origin Strokes Stroke Words Sentences Sents 河外星云 河外星雲 héwàixīngyún extragalactic nebula Frequency Written text 0.002 per million Cross-References Same as 河外星系 héwàixīngxì Sources Frequency data BCC Corpus (BLCU)
河外星云 河外星雲 héwàixīngyún extragalactic nebula Frequency Written text 0.002 per million Cross-References Same as 河外星系 héwàixīngxì Sources Frequency data BCC Corpus (BLCU)
