这可能意味着目标系统接口已脱机或存在网络问题而不能连接。
This may mean the destination system interface is offline or there a network problem prevents connection.
这可能意味着中介已脱机或存在网络问题而不能连接。
This may mean the mediator is offline or a network problem prevents connection.
同样地，reconnected方法会将状态更改为STATE_CONNECTED，以让客户机知道它已再次连接到网络而且可以从服务器检索时间。
Similarly, the reconnected method changes the state to STATE_CONNECTED letting the client know it is again connected to the network and can retrieve times from the server.
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