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	North American Thermal Analysis Society North American Toll-Free Services Markets north american university North American urogenital blastomycosis North American watershed North American white-flowered avens north american yacht racing union North America oaks North America Regional Test Center north americas North America will move westwards North Amherst North Amity northampton Northampton County Northampton County Area Community College Northampton Downs northamptons Northampton sands Northampton Seamount North Andover Northamptonshire Northampton shire northamptonshires NorthamptonSywellAirport