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单词 coolant
释义

WordReference Random House Learner's Dictionary of American English © 2024
cool•ant /ˈkulənt/USA pronunciation   n. 
  1. Thermodynamicsa substance used to reduce the temperature of a system below a certain value: [countable]coolants made from alcohol mixtures.[uncountable]Coolant had spilled over the engine.

WordReference Random House Unabridged Dictionary of American English © 2024
cool•ant  (ko̅o̅′lənt),USA pronunciation n. 
  1. Physics, Thermodynamicsa substance, usually a liquid or a gas, used to reduce the temperature of a system below a specified value by conducting away the heat produced in the operation of the system, as the liquid in an automobile cooling system or the fluid that removes heat from the core of a nuclear reactor.
  2. Thermodynamicsa lubricant that dissipates the heat caused by friction.
  • cool + -ant 1925–30

Collins Concise English Dictionary © HarperCollins Publishers::
coolant /ˈkuːlənt/ n
  1. a fluid used to cool a system or to transfer heat from one part of it to another
  2. a liquid, such as an emulsion of oil, water, and soft soap, used to lubricate and cool the workpiece and cutting tool during machining
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更新时间：2026/6/18 19:35:21