N a member of any of several classes of astronomical bodies, including quasars (strong radio sources) and quasi-stellar galaxies (no traceable radio emission), both of which have exceptionally large red shifts 类星体 ( abbr: QSO)
N（名词） a member of any of several classes of astronomical bodies, including quasars (strong radio sources) and quasi-stellar galaxies (no traceable radio emission), both of which have exceptionally large red shifts 类星体 ( abbr: QSO)