Db2extev (external event handler thread) : The same as SIGUSR2.
db 2 extev(外部事件处理程序线程)：与SIGUSR2相同。
Short deterministic response latencies mean that the embedded system can determine the time it will take to respond to an external event.
短暂的确定性响应时间是指嵌入式系统可以确定它对外部事件作出响应的时间。
You can think of a long-running process as a workflow process; it may wait for an external event to happen, or call upon one or more people to perform a task.
您可以将长时间运行的流程视为工作流流程；它可能会等待外部事件发生，或呼叫一个或多个人员执行任务。
Training events, visits from management, guest speakers, or various types of interest-based events can yield the same type of contacts as an external event.
培训活动，主管部门的参观，来宾的演讲，或者基于兴趣的各种内部活动都会提供同样的交际机会。
Your worry is always triggered by some external event or happening.
你总是为一些外因或事情而烦恼。
Your worry is always triggered by some external event or happening.
你总是为一些外因或事情而烦恼。
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