When there is no activity for 4 minutes, you will receive a 1 minute warning notice.

如无任何操作超过四分钟，您将看到一个持续一分钟的警告信息。

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Put a warning notice in the following position to tell persons not to operate these pushbutton switches.

在以下位置上放置警告标牌以告知他人不要操作这些按钮电门。

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