- An enclosed vessel in which water is heated and circulated, either as hot water or as steam, for heating or power.锅炉，汽锅：一种封闭的容器，可对热水或蒸气在此加热或进行循环，以获取热量或动力
- A container, such as a kettle, for boiling liquids.水壶：用来煮东西或装热水的器皿，如热水壶
- A storage tank for hot water.水箱：盛放热水的储存箱