1、A thermosiphon is a method of passive heat exchange based on natural convection, which circulates a fluid without the need for a mechanical pump.
热虹吸是一种基于自然对流的被动热交换方法，它可以在不需要机械泵的情况下循环流体。
2、The solar water heater in their house works on the principle of thermosiphon.
他们家的太阳能热水器是基于热虹吸原理工作的。