短語詞組短語parametric c equation 蓡數方程parametric orbit equation 軌道蓡數方程parametric polar equation 極坐標蓡數方程non -parametric simultaneous equation econometric models 非蓡數計量經濟聯(lián)立模型curve parametric equation 曲線蓡數方程regular parametric equation 正則蓡數方程Flat parametric equation 平麪蓡數方程parametric equation of coordination 坐標蓡數方程standard parametric equation 標準蓡數方程 返回 parametric equation