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

An enclosed vessel in which water is heated and circulated, either as hot water or as steam, for heating or power.

吸入器用来吸入气体，蒸汽或空气的仪器，如呼吸器或吸气器

A device, such as a respirator or an inhaler, by which a gas, vapor, or air is drawn in.