Definition: In the context of a scientific or technical field, "preheats" are terms used to describe a process that involves heating or cooling a sample before performing certain analyses. This technique is often used in laboratory settings where temperature and humidity levels must be maintained for precise measurements. For example, in thermodynamics, preheating is used in the design of heat engines where the heat from the engine's combustion chamber is transferred to a heat reservoir through a preheater. In nuclear physics, the term
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