对流

热空气会上升形成对流

rè kōngqì huì shàngshēng xíngchéng duìliú

The warm air rises to form convection

这个房间对流不好

zhège fángjiān duìliú bù hǎo

In this room, airflow is poor

开窗能加强对流

kāi chuāng néng jiāqiáng duìliú

Opening windows can strengthen convection