curve-fit的用法和樣例：
例句
- CAD for crown profile curve fitting of diamond bit.
金剛石鑽頭冠部曲線擬合的計算機輔助設計。 - The paper gives many methods of edge detection and explains the methods of curve fitting based on edge points and heuristics search for road edges.
本文給出多種邊緣檢測方法，還給出了基於邊緣候選點的曲線擬合方法和搜索邊緣的啟髮式搜索方法。
