To spray is to pass a liquid on to an object using a spray. A spray with pressure expels a thin mist of liquid that breaks up into particles passed through the air onto a surface and covers an object with an even coating of fine spots. There are many types of sprays, oral and spray guns that can be controlled by the pressure of the hand or electricity. The spray is secured on to a jar filled with a liquid and when the trigger is closed it pushes compressed air and this pushes the liquid up through the spray and out. With a good electrical spray the density and the area can be controlled.
Great care must be taken when using sprays, always use a mask.
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