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  • 电离氢区和中性氢区

    电离氢区和中性氢区

    电离氢区和中性氢区,电离氢区和中性氢区,dianli qingqu he zhongxing qingqu,电离,dianli,zhongxing,qingqu,[拼音]:dianli qingqu he zhongxing qingqu[外文]:HⅡand H I regions以氢为主要成分的星际气体云。若星云附近有早型的炽热恒星,则...

    2023-12-15 4199 百科大全