迴歸曲線於橫軸截距定義為降雨門檻值，線性一次迴歸及二次迴歸結果發現，二

迴歸曲線於橫軸截距定義為降雨門檻值，線性一次迴歸及二次迴歸結果發現，二次迴歸之降雨門檻值較一次迴歸低很多。

結果 (英文) 1:

Regression curve to horizontal intercept is defined as rainfall threshold values a regression and linear quadratic regression results showed that rainfall threshold values of quadratic regression is much lower.

結果 (英文) 2:

Intercept of the regression curve in the horizontal axis is defined as the rainfall threshold value, linear regression and linear quadratic regression found that rainfall than the threshold of a quadratic regression is much lower.

結果 (英文) 3:

Regression curves on the horizontal axis intercept is defined as rainfall threshold value, linear regression and quadratic regression results show that, the quadratic regression of the rainfall threshold value much lower than a regression.