例句與造句

1. the error bounds of first and second partial derivatives for the two-dimension rational splines produced by the error of boundary conditions are estimated
   討論邊界條件對二元cv有理插值樣條函數(shù)的影響,分別建立了兩類邊界值所控制的估計式
2. It's difficult to find second partial derivatives in a sentence. 用second partial derivatives造句挺難的