Use of high-pressure water spray to remove loose paint, mold, grime, dust, mud, chewing gum and dirt from surfaces and objects such as buildings, vehicles and concrete surfaces.
Brush or other object used to clean something./ machine or device for drying something, especially the hair or laundry./ apparatus with rotating blades that creates a current of air for cooling or ventilation.
Invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen./ Equipment use to remove dirt, dust and grime by using methods such as dusting, shaking, sweeping, mopping, washing or pol- ishing.
Method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. Sound is a pressure wave, which consists of alternating periods of compression and rarefaction.
Person or device that cleans a floor or road by sweeping./ long-handled brush of bristles or twigs, used for sweeping.
High-pressure mechanical sprayer used to remove loose paint, mold, grime, dust, mud, and dirt from surfaces and objects such as buildings, vehicles and concrete surfaces./ Use of high pressure water between 5,000 to 10,000 psi (34 to 70 ...
Space entirely devoid of matter, region with a gaseous pressure much less than atmospheric pressure. Often discuss ideal test results that would occur in a perfect vacuum, which they sometimes simply call "vacuum" or free space.