Because the three switches in an alarm switch are in different states, the entire device is in three different functional pre-warning states.
由于报警开关中三个开关分别处于不同状态，因而使整个装置处于三种不同功能预警状态。
Because the three switches in an alarm switch are in different states, the entire device is in three different functional pre-warning states.
由于报警开关中三个开关分别处于不同状态，因而使整个装置处于三种不同功能预警状态。
应用推荐