An instance of a business state machine can be in only one state at any given time.
业务状态机的一个实例在任意给定时刻只能处于一种状态。
Only a single Derby instance is allowed to access any given database at a time.
每次只允许一个Derby实例访问任何给定的数据库。
You will need at least one logical instance to do any bridging at all.
你需要至少一个逻辑网桥来完成桥接。
You will need at least one logical instance to do any bridging at all.
你需要至少一个逻辑网桥来完成桥接。
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