例句與造句

1. in the last chapter of this thesis, we introduce two kinds of sheet metal parts . one is forming part which require very accurate prediction of blank shape, the other is drawing part which need just approximate prediction of blank shape . we apply the scale coefficient method to predict the blank shape of these two kinds of sheet metal parts
   文中最后一章,給出了兩類典型的沖壓零件,一類是落料后直接成形的零件,該類零件初始板料的形狀及尺寸要求非常精確;另一類是兩次拉延成形的零件,這類零件的初始板料要求適合的形狀及尺寸即可。
2. It's difficult to find approximate prediction in a sentence. 用approximate prediction造句挺難的