This is actually a state-transition diagram in which each valid state is well-defined, and a specific activity has to be performed in order to move from one state to the next.
这实际上是一个状态转换图，其中定义了所有有效状态，为了从一个状态转移到下一个状态，必须执行特定的活动。
Some designers may want to combine these into a UML state machine or a UML activity as a way to consolidate the emergent behavior of all the scenarios.
一些设计人员可能想要将这些结合到UML状态机或uml活动中，作为固定所有场景的意外行为的方法。
Any activity intended to retain a functional unit in, or to restore it to, a state in which it can perform its required function.
使功能部件保持在或恢复到能完成其规定功能的状态的任何活动。
Any activity intended to retain a functional unit in, or to restore it to, a state in which it can perform its required function.
使功能部件保持在或恢复到能完成其规定功能的状态的任何活动。
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