The following () options belong to water-cooled chilled water air conditioners. (Multiple choice)

____________ is used to ensure that the fire extinguishing agent has been sprayed out in a specific jet form to promote the rapid gasification of the fire extinguishing agent and reach the fire extinguishing concentration in the protected space.

The basic principle of infrared heaters is that infrared rays heat water to boiling, thereby generating steam.

The valve-controlled sealed lead-acid battery safety valve has ____________ Function.

Parameter representation upsPollution to the power grid.