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the usually stationary base of a machine, on which all other assemblies are mounted or on which the assemblies move. Beds are equipped with guides for movable assemblies. They are subjected to stresses originating in other machine assemblies and parts and are usually fastened to a foundation. Beds are cast from pig iron or, less frequently, made by welding up low-carbon steel parts. They have a complex, sometimes boxlike shape. They may be partitioned or ribbed, or they may have open sections; large beds are sectionalized. Beds for metal-cutting machine tools and presses have the most typical construction. For work on particularly heavy workpieces, the bed of a machine moves along guides and the workpiece remains stationary. The principal requirements for a bed are high rigidity, high resistance to vibrations, and high precision and wear resistance for the guides.
What does it mean when you dream about a bed?
Beds and bedrooms have a range of different meanings, from rest and sleep to sex and marriage. In dreams of marriage or romance, the state of a bed, whether neat or disordered, can be interpreted as a symbolic comment on the state of a relationship. Also, something underneath a bed may show that something about a relationship is not out in the open. (See also Mattress).