Vacuum engineering
（重定向自Vacuum equipment）
Vacuum engineering deals with technological processes and equipment that use vacuum to achieve better results than those run under atmospheric pressure. The most widespread applications of vacuum technology are:
Vacuum coaters are capable of applying various types of coatings on metal, glass, plastic or ceramic surfaces, providing high quality and uniform thickness and color. Vacuum dryers can be used for delicate materials and save significant quantities of energy due to lower drying temperatures.