键盘是否被锁定？
In addition, the client computers could be operated only when they received specific instructions from the server, otherwise, they would be shut down or the keyboard and the mouse would be locked.
另外，要求客户机只有在收到服务器发送的特定指令时才能进行操作，否则关机或锁定键盘和鼠标。
S have rehabilitation disk lock function: more than one minute keyboard automatically locked, again operation to reconsider to unlock, in case the incorrect operation happened.
具有健盘锁定功能：超过一分钟键盘自动锁定，再次操作需重新解锁，以防误操作发生。
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