蒸汽

1. 云是由水蒸汽凝缩而成的。
   A cloud is a condensation of water vapour.
2. 水受热变成水蒸汽。
   Heat evaporates water into steam.
3. 水加热则成为蒸汽，冷却则成为冰。
   Water is changed into steam by heat and into ice by cold.
4. 他用蒸汽把信封上的邮票揭下来。
   He steamed the stamp off the envelope.
5. 蒸汽冷却时凝结成水。
   Steam condenses into water when cooling down.
6. 蒸汽机车已被柴油内燃机车所取代。
   The steam locomotives were superseded by diesel units.
7. 这些发动机是由蒸汽驱动的。
   The engines are driven by steam.
8. 水被加热时，可以变成水蒸汽。
   Water can be changed into vapor when heated.

蒸的英语翻译：

汽的英语翻译：