旋转手机上下颠倒，或放到口袋里，以自动锁定屏幕和按键。
Rotate the phone upside down or put it into pocket in order to lock screen and keys automatically.
该系统还具有声光报警功能，并可通过按键对报警上下限进行设置。
The system also has the function of sound and light alarm, and it can set the alarm value by the upper and lower button.
该系统还具有声光报警功能，并可通过按键对报警上下限进行设置。
The system also has the function of sound and light alarm, and it can set the alarm value by the upper and lower button.
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