The acoustic image file is a unitfile important component.
声像档案是一个单位档案的重要组成部分。
2
The next example shows a program that is divided into two files: a project file and a unitfile.
下面的实例将程序被分成两个文件：一个工程文件，一个单元文件。
3
Unit tests don't deal with databases, file systems, or anything else that would tend to make tests run longer; consequently, unit tests can be written from day one.