研究了电压后紧急控制中重要区域的分层布防的重要问题。
Important problems about the hierarchical defending of important area in post-emergency voltage control are studied.
讨论了电力系统后紧急控制中关于信息容错性和信道容错性的关键问题。
Some key problems about the information fault tolerance and channel fault tolerance in the post-emergency control are discussed.
在线预测系统扰动后的稳态频率，有利于扰动后系统频率稳定性评估和紧急控制。
On line predicting obtaining power system post disturbances steady frequency is beneficial for frequency stability assessment and emergency control.
到达后，宇航员们送出的无线电信号将需要几分钟才能达到任务控制，因此，宇航员们将不得不在没有外界的帮助下处理紧急情况。
Upon arrival it would take many minutes for radio messages to reach mission control, so the astronauts would have to deal with emergencies without external help.
到达后，宇航员们送出的无线电信号将需要几分钟才能达到任务控制，因此，宇航员们将不得不在没有外界的帮助下处理紧急情况。
Upon arrival it would take many minutes for radio messages to reach mission control, so the astronauts would have to deal with emergencies without external help.
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