英语词汇“本星系群”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	本星系群
释义	本星系群 běn xīng xì qún以銀河系爲中心，半徑約300多萬光年空間內星系的總稱。已知成員和可能成員有星系四十個左右。主要的星系有銀河系，大、小麥哲倫星雲，三角座旋渦星系，仙女座旋渦星系m31和m32等。總質量約爲六千五百億個太陽質量。它又是範圍更大的本超星系團的一個成員。
随便看	occupational division of labour occupational dose occupational drug dependence occupational drying-up disease occupational dust Occupational dust particles occupational dysaudia occupational dyskinesia occupational eczema occupational education Occupational emtion occupational ennui occupational environment Occupational environmental problem occupational environment changes Occupational epidemiology occupational factor occupational factor in crime occupational factors occupational failure occupational family occupational farmers occupationalfatigue Occupational Field Expansion Course occupational field implementation team