Convection boiler
[机] 对流锅炉
🧩 词语组成解析
convection
[[kən'vekʃən]]
n. 传送, 对流, 传导\\n[化] 对流
🗣️ 情景例句
But there's the old community center on Elm Street.
但是在Elm街有一个旧的社区中心。
This metal is harder than that one.
这种金属比那种硬。
The children shouted to the driver, but he did not hear them.
孩子们对着司机喊叫着，但是他没有听见。