Complex control and data flows easily lead to multiple connections in process models, which are another source of cluttered models.

复杂的控制和数据流容易导致流程模型中出现多个连接，这是产生混乱的模型的另一个来源。

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When you start the simulation from the control panel, multiple instances of the process will now run.

当您从控制面板启动模拟时，现在将会运行流程的多个实例。

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Thread of control: Tells if the operations in a transaction need to be serialized in the process, or if multiple threads in a process can participate in the transaction branch.

Thread of control：告诉事务中的操作是否需要在流程中序列化，或者流程中的多个线程是否可以参与事务分支。

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