“concentric conics”的概念、定义、翻译、参考文献-科学参考

单词	concentric conics
释义	concentric conics Mathematics concentric conics同心圆锥曲线
随便看	back extraction back extraction; stripping backfat at target weight backfeed bond back feed factor backfile database backfill Backfire backfire backfire antenna back fixed group backflow backflow [effect] backflow effect backflush back flushing back focal distance back focal plane back focus back focus length back formation backgammon backgammon set backgear background

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