This is the same arrangement found in an old-fashioned steamradiator, in which the coiled pipes pass heat back and forth as water courses through them.
这个结构与老式蒸汽暖气片相同，水流经散热器时，热量通过盘管来回输送。
2
A steamradiator is a good example of heating by convection.
蒸汽暧气片是一个对流加热房屋的好例子。
3
My 10 year old son has been peeing on the radiator thinking it was fun to watch it steam and sizzle. FML.