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	middle ear pressure Middle ear pressure transformation therapeutics middle-ear reflex middle ear region Middle ear rupture middle ears middle-ears middle ear space Middle ear surgery Middle-East and Persian Gulf Region Middle East and World Civilizations Middle-East area Middle East Arms Transfer Middle East Command MIDDLE EAST CONFLICT CUMULATIVE INDEX Middle Earth Middle-earth Middle-Earth literature middle earth orbit middle-earths middle ear tuberculosis middle ear ventilation Middle Ear Ventilations Middle East middle-east