The ventilation fan switch on the button panel does not work here.
掣板上的抽风机开关掣在这里并不能运作。
Namely, low temperature fan switch to the slow, high temperature fan switch to the fast.
即温度低风扇转的慢，温度高风扇转速加快。
Fan operation switch, lighting switch, temperature controller, emergency stop.
风机、照明开关，温控仪，急停开关。
Fan operation switch, lighting switch, temperature controller, emergency stop.
风机、照明开关，温控仪，急停开关。
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