单项选择题
A.increase B.decrease C.remain unchanged D.be greatest at dew point
Routine maintenance on a Central Control Room hermetica...
单项选择题Routine maintenance on a Central Control Room hermetically sealed air conditioning unit should include （）
A.changing the air filter B.recharging the system C.changing compressor lubricant D.renewing container vacuum
In an air conditioning system, moisture is removed from...
单项选择题In an air conditioning system, moisture is removed from the air by（）
A.filers B.separators C.ducted traps D.dehumidifiers
A lower thermostatic temperature setting will provide a...
单项选择题A lower thermostatic temperature setting will provide a desired degree of comfort in a room where （）
A.low relative humidity is maintained B.triple banded squirrel cage fans are used C.air circulation is a maximum D.high relative humidity is maintained
