汽的用法和样例:
例句
-
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. -
蒸汽冷却时凝结成水。
Steam condenses into water when cooling down. -
他用蒸汽把信封上的邮票揭下来。
He steamed the stamp off the envelope. -
蒸汽机车已被柴油内燃机车所取代。
The steam locomotives were superseded by diesel units. -
水受热变成水蒸汽。
Heat evaporates water into steam. -
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. -
云是天空中的水汽团。
A cloud is a mass of vapor in the sky.