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单词 convection
释义

WordReference Random House Learner's Dictionary of American English © 2024
con•vec•tion /kənˈvɛkʃən/USA pronunciation   n. [uncountable]
  1. Physicsthe transfer of heat by the circulation of heated liquid or gas:Does a room's radiator get its heat by convection?
con•vec•tion•al, adj. 

WordReference Random House Unabridged Dictionary of American English © 2024
con•vec•tion  (kən vekshən),USA pronunciation n. 
  1. Physicsthe transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
  2. Meteorologythe vertical transport of atmospheric properties, esp. upward (distinguished from advection).
  3. the act of conveying or transmitting.
  • Late Latin convectiōn- (stem of convectiō) a bringing together. See convect, -ion
  • 1615–25
con•vection•al, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
convection /kənˈvɛkʃən/ n
  1. a process of heat transfer through a gas or liquid by bulk motion of hotter material into a cooler region
    Compare conduction
  2. the process by which masses of relatively warm air are raised into the atmosphere, often cooling and forming clouds, with compensatory downward movements of cooler air
Etymology: 19th Century: from Late Latin convectiō a bringing together, from Latin convehere to bring together, gather, from vehere to bear, carry

conˈvectional adj conˈvective adj
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更新时间:2024/9/20 17:51:16