For example in a process flow it is possible to define timer condition which when fired execute a given task within the process.
例如，在过程流中可以定义计时器条件，当计时器触发时在过程中执行指定的任务。
In any execution of the process, both inputs will never be produced and thus, Task 4 cannot execute.
在此流程的任意执行过程中，将永远不会产生这两个输入，因而无法执行Task 4。
This use of the stop node is correct, because task 4 is the last executing task of this process and no other activities execute in parallel.
在此处使用停止节点是正确的，因为Task 4是该流程执行的最后一个任务，而且没有与之并行执行的活动。
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