Building subprograms so that the names of the subprograms describe what the subprograms do and the code inside subprograms shows how the processes are accomplished is an illustration of abstraction in action.
主要是so that这里看不懂。
主句是Building subprograms is an illustration of abstraction in action.，so that表目的状语？
谁懂的请解析一下，谢谢。