英语释义
1. the action or process of conveying
2. movement in a gas or liquid in which the warmer parts move up and the cooler parts move down
convection currents
3. the transfer of heat by convection
foods cooked by convection — compare conduction, radiation
4. movement in a gas or liquid in which the warmer parts move up and the colder parts move down also the transfer of heat by this movement
5. motion in a gas (as air) or a liquid in which the warmer portions rise and the colder portions sink
Heat can be transferred by convection.
6. the circulatory motion that occurs in a fluid at a nonuniform temperature owing to the variation of its density and the action of gravity
7. the transfer of heat by convection in a fluid