snapshot program

1. The snapshot contains a set of data regarding the program state and measurement information accumulated up to a specific point of time.
   快照包含一组关于积累到一个具体时刻的程序状态和量度信息的数据。
2. After creating the second snapshot the program then compares it with the first and records all the differences in a special file called an "installation log file", or" log file "for short.
   在创建第二个快照之后，该软件会将其与第一相比较，把所有不同的部分保存在一个叫“安装记录文件”或简称“记录文件”的特殊文件中。

noun

1. a trace program that produces output for selected conditions