trace out

基本解释

You can apply trace mask to trace out only specific components.
可以限制跟踪的范围，只跟踪特定的组件。
Pictured above is a series of images digitally stacked so that all of the stars images coincide. Here, Mars appears to trace out a loop in the sky.
上面图是一系列数码照片叠加而成的，让恒星重合，而火星貌似在天空中画了一个环。
The first option -- shown in Figure 13 -- is to trace out of the use case, which shows use cases on the top level and tracing to scenarios and test cases.
第一个选项——如图 13显示——用于追踪到用例外，用来显示上层的用例并且追踪场景和测试用例。

It is a pity he did not start with the appendix and trace out what it might entail.
ECONOMIST: Political ideas
For instance, trying to trace out a visible Engadget logo took more than a few attempts, and the results could often be confused due to a trailing shirtsleeve.
ENGADGET: Neonode's Proximity multi-sensing technology hands-on (video)
One should also not stop with the short-run effects of the minimum wage but trace out the longer-run effects on the number of jobs and unemployment rates for affected workers.
FORBES: The Minimum Wage Delusion, And The Death Of Common Sense