您还可以使用系统资源控制器(SRC)来启动跟踪。

You can also start the trace using the System Resource Controller (SRC).

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在设置监控工作时，您可以启动和停止跟踪，也可以在子系统DSNZPARM中对其进行定义，让DB 2自动运行它们。

You can either start and stop trace when you set on a monitoring exercise, or you can define in the subsystem DSNZPARM to have DB2 run them automatically.

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而且对于旅客来说最有用的服务应该是全球定位系统跟踪服务(GPS tracking)，如果需要的话它是实时运行的，这样用户就不需要每次使用时，都要重新启动一个应用程序或功能条。

And arguably the most useful service for the traveller, GPS tracking, will run constantly (if required) so users do not need to restart an app or piece of functionality each time they fire it up.

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