Ice cubes cool down because the process of turning ice cubes into water is melting, and melting absorbs heat, so it needs to absorb a lot of heat from the surrounding, and the temperature of the surrounding air decreases.

Spray cooling, because the process of water mist changing into steam is vaporization, vaporization is to absorb heat, which needs to absorb a lot of heat from the surrounding, and the temperature of the surrounding air is reduced.

So the answer is: melting; Vaporization; Absorb