convectionKK [kəˋnvɛkʃən] /kəˈnvɛkʃən/名詞1對流物理、氣象Heat moves through the water by convection rather than conduction.熱在水中是靠對流而非傳導傳遞的。2對流作用、對流現象氣象Strong convection in the afternoon often produces heavy thunderstorms.午後旺盛的對流作用常帶來強烈雷雨。