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- 云是由水蒸汽凝缩而成的。
A cloud is a condensation of water vapour.
- 水受热变成水蒸汽。
Heat evaporates water into steam.
- 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.
- 他用蒸汽把信封上的邮票揭下来。
He steamed the stamp off the envelope.
- 蒸汽冷却时凝结成水。
Steam condenses into water when cooling down.
- 蒸汽机车已被柴油内燃机车所取代。
The steam locomotives were superseded by diesel units.
- 这些发动机是由蒸汽驱动的。
The engines are driven by steam.
- 水被加热时,可以变成水蒸汽。
Water can be changed into vapor when heated.
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海词词典,十七年品牌