These regulations address track, equipment, railroad operating rules and practices, qualification and certification of locomotive engineers, control of alcohol and drug use, and other subject matters.

这些规定阐述了涉及诸多事宜，包括：轨道、设备、铁路的运营规定和操作方法、列车司机的资格鉴定和认证、酒精和药物的使用的管制等，以及其他主题。

youdao

You can create virtual users, and then create and track transactions all the way through the system, collect and analyze the performance data, and address any issues you uncover.

你也可以创建实际用户，然后建立并在整个系统中追踪事务，收集并分析性能数据，接下来解决发现的任何问题。

youdao

To address this problem, generational collectors must explicitly track references from older objects to younger objects and add these old-to-young references into the root set of the minor collection.

为了解决这个问题，分代收集器必须显式地跟踪从老对象到年轻对象的引用并将这些老到年轻的引用加入到小的收集的根集中。

youdao

Senator Reid says he believes Mr.Obama's address to the nation will help put the health care reform effort back on track.

VOA: standard.2009.09.08

So there we have, I'll create a GUI interface using Visual Basic, see if I can track an IP address.

好了，我用VB创建一个,图形用户界面，看是否可以跟踪IP地址。

哈佛公开课 - 计算机科学课程节选

I'll create a GUI interface using Visual Basic, see if I can track an IP address.

我用VB创建一个图形用户界面，试试能不能跟踪IP地址。

哈佛公开课 - 计算机科学课程节选

Where it exists, the connection between drug trafficking and terrorism is a significant transnational threat that requires interagency and international collaboration in efforts to track and address the problem.

WHITEHOUSE: Strategy Appendix

But the stolen credentials could be used to eavesdrop on private messages or track which Internet address a user is posting from.

NPR: Twitter Says Hackers Compromise 250K Accounts

"They simply aren't very good at covering their tracks -- you can track the IP address and see it came from another airline's corporate office, " he said.

CNN: STORY HIGHLIGHTS