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bl lac object英英字典_bl lac object剑桥英语解释_bl lac object柯林斯英文解释_开心英文字典_柠咚词
开心英文字典

bl lac object

B 开头单词

柯林斯词典

    BL Lac object

  • 1. N an extremely compact violently variable form of active galaxy 蝎虎座BL型天体

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