the methods described in this chapter and utilized in the sample problem calculation can't be expected to yield perfect predictions of ground level pollutant concentrations . 用本章所介绍并用在实例计算中的方法,不能期待得到地面污染物浓度的精确预测值。
the larger sample problem on test of likehood ratio 似然比检验的大样本问题
let s put a generator to work in our sample problem 让我们使生成器工作在我们样本问题中:
let's run through these sample problems 让我们重复这些实例的问题。
sample problem sets are provided, as well as related resources 有提供问题集范例与相关资源。