exponential integral造句

例句与造句

1. In this paper , we discuss the estimate of regression function in nonparametric regression model based on exponential integral martingale difference
   摘要本文研究了误差项是鞅差序列，且满足某种指数矩条件的非参数回归函数的估计。
2. It's difficult to find exponential integral in a sentence. 用exponential integral造句挺难的