A、close Fan and Humidifier at the same time
B、firstly close Fan and then close humidifier immediately
C、firstly close humidifier and then close Fan immediately
D、firstly close humidifier and then close Fan after 30 seconds
更多“The air-conditioner is running in the winter and to be stopped, we should（）”相关的问题
A、refreshing the air B、making person upset C、adjusting the air humidity D、adjusting the air temperature
A、increases the density of the air B、decrease the density of the air C、increases the specific heat of the air D、decreases the specific heat of the exhaust
A、the pressure of the starting air is high enough B、there is enough air in the air reservoirs C、the air is supplied into the cylinders in the appropriate sequence D、all of the above
A、Holding the valve open for a long period B、Increasing the starting air pressure used C、Opening the stating air valve quickly D、Reducing the starting air valve size
A、broken inlet valves B、broken discharge valves C、pulsations in the air distribution system D、overloading of the air distribution system
A、noise coming from that air starting valve B、continuous operation of the starting air compressor C、zero air pressure in the air starting system D、overheated starting air pipe to the cylinder head
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