短語詞組短語curved contact line 曲線區(qū)段Curved -line 路線弧度curved rigid line 剛性線curved railway line 番茄醬curved d line 曲線curved -line surface of revolution 曲線回轉(zhuǎn)面double curved line 復(fù)曲率irregular curved line 不規(guī)則曲線curved line relation 曲線關(guān)系 返回 curved line