In the dynamic environment monitoring system, ____________ is used to indicate the severity of the corresponding fault.
In the air-conditioning system, the function of the ____________ is to use water cooling or air cooling to cool the high-temperature and high-pressure gas discharged from the compressor and release heat to the outside world.
During the construction process, the nitrogen bottle operation must be equipped with special ____________ .
There are generally two types of variable air volume ventilated floors, one is through an adjustable air valve, and the other is a dedicated ventilated floor plus adjustable fans.
