因为用户界面是程序最初的入口，所以它必须能够用于多种目的。
Because it is the initial gateway to a program, the user interface must be able to serve multiple purposes.
如果将一种文档类型用于多种目的，那么应该为每种目的提供一个样例。
If you use a document type for multiple purposes, you should provide a sample for each purpose.
分析报表提供的历史记录可以被用于多种目的，包括决策支持，质量控制和依从关系等。
Analysis reports provide a record history that can be used for many purposes, including decision support, quality control, and compliance.
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