所有已进行的工艺或分析方法变更的回顾。
A review of all changes carried out to the processes or analytical methods.
对主题或分析方法有任何疑虑都可与我讨论。
If in doubt about a topic or analytical approach, check with me.
而这几个公式的求和问题不论是用初等方法或分析方法都是比较困难的，但用概率的方法却比较容易解决。
These sum problems are all difficult for using elementary method and analysis method, but we can easily solve these sum problems by using the probability method.
应用推荐