Pressure differential switch monitors the status of the filter, when the set point is exceeded, a signal will be given to switch on "filter clogged" indicating lamp on the computer.
压力微分开关对过滤器的状态进行监测，当超过设定值时，就会向开关发出一个“过滤器阻塞”的信号，在计算机上的指示灯就会发亮。
Switches are like "optional" parts of the template. They only appear if the switch is set. If the switch is not set, it's simply not shown.
开关类似于模板中的可选部分，只出现在开关设定的情况下，如果开关没有设定，开关标记的中间部分模板将不会被显示。
Based on the original idea to add the alarm Settings, alarm clock, when set up, the need to open the alarm switch, alarm switch is open, in the first logo screen will display alarm clock.
在原有基础上添加了闹钟设置，当设置好闹钟时，需要打开闹钟开关，闹钟开关打开时，在首屏上会有闹钟标志显示。
Dis is the button of display switch, which displays the set frequency value (F_XX) and the actual frequency value (H_XX) to switch between.
DIS显示切换键，显示在设定工作频率值(F_XX)及实际工作频率值(H_XX)之间切换。
Dis is the button of display switch, which displays the set frequency value (F_XX) and the actual frequency value (H_XX) to switch between.
DIS显示切换键，显示在设定工作频率值(F_XX)及实际工作频率值(H_XX)之间切换。
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