It 's educational tracing them to the source .

追踪这些采样的源头颇具教育意义。

This ray tracing , as dr ng calls it , derives directly from computer graphics .

用ng博士的话来说，这种射线追踪方法，直接来自计算机图形分解技术。

Next , do_fork checks to see whether the debugger is tracing the parent process .

然后，do_fork查看调试器是否跟踪父进程。

It follows last week 's revelation that investigators were tracing a new possible suspect .

从上个星期透露出来的消息可以了解到，调查人员当时正在追查一名新发现的嫌疑人。

Bilateral animals flourished in the cambrian so tracing their origins is crucial to understanding the pace of animal evolution .

两侧对称动物在寒武纪繁衍旺盛，因此追踪它们的起源对了解动物是如何进化而来的十分重要。