| 单词 | convection |
| 释义 | Word Frequency convection(kənˈvɛkʃən) noun 1. a process of heat transfer through a gas or liquid by bulk motion of hotter material into a cooler region Compare conduction (sense 1)2. meteorology 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 3. geology the slow circulation of subcrustal material, thought to be the mechanism by which tectonic plates are moved Derived forms convectional (conˈvectional) adjective convective (conˈvective) adjective Word origin C19: from Late Latin convectiō a bringing together, from Latin convehere to bring together, gather, from vehere to bear, carry |
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