twice algorithm的用法和樣例：
例句
- An algorithm of feature surface recognition based on quadric surface fitting and geometry property was presented.
摘要提出了基於二次曲面擬合誤差分析和幾何屬性分析的特徵曲面識別演算法。 - Uses the quantile estimates calculated by the extended algorithm to compute intermediate quantile estimates by means of quadratic interpolation.
使用擴展演算法進行分位數的估算，以二次插值法的均值計算中間分位數。
