抛物线

para curve的用法和样例：

例句

用作名词(n.)

Any continuous curve can be closely approximated by a series of small parabolic segments.任一连续曲线可以借一系列很小的抛物线线段较精密地近似表示。
A plane curve formed by the locusof points equidistant from a fixed line and a fixed point not on the line.抛物线到一固定直线和不在直线上某一固定点等距的点的轨迹所形成的平面曲线。

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