the process in which heat moves through a gas or a liquid as the hotter part rises and the cooler, heavier part sinks (热通过气体或液体的)运流,对流 convection currents 对流气流
Oxford Collocations DictionaryConvection is used before these nouns:- current
- oven
Word Originmid 19th cent.: from late Latin convectio(n-), from Latin convehere, from con- ‘together’ + vehere ‘carry’.