单词	真锥线
释义	真锥线proper conic
随便看	science and technology service science and technology service agency science and technology statistics science and technology studies science and technology support program science-a process approach (sapa) science area science area--science center science area；science center science-based industrial park science-based innovation science camp science center science citation index science citation index {= sci} science club science college ability test science communication science concept learning project science consultant science correspondent science council of japan science council of japan--scj science council of japan，scj science court