One of the most powerful of all weather systems, hurricanes are powered by the heat energy released by the condensationofwater vapour.
作为所有天气系统中最强大的系统之一，飓风是由水蒸气凝结释放的热能所驱动的。
2
A cloud is a condensationofwater vapour in the atmosphere.
云是由大气中的水蒸气凝结成的。
《新英汉大辞典》
3
The technique, called laser-assisted watercondensation, could one day unlock the secrets of weather cycles and enable humans to decide where and when it rains.