短語詞組短語difference E in quality 品質上的差異difference U in quality 品質上的差異difference map in strength 灰度差值圖difference e in time 時差difference method in time 時間差分方法difference equation in two variables 二變量差分方程finite difference quotient in longitude 緯向有限差商difference -in- 倍差法;雙重差分;模型;差分模型difference inequality in two variables 二變量差分不等式 返回 difference in