单语范例（未经PONS编辑处理）
Elemental phosphorus is then liberated as a vapour and can be collected under phosphoric acid.
en.wikipedia.org The highly symmetric shapes are due to depositional growth, namely, direct deposition of water vapour onto the ice crystal.
en.wikipedia.org Vapour from the ruptured tanks had escaped into the vessel and exploded in a fireball.
en.wikipedia.org The zinc vapour and carbon dioxide pass to a vacuum condenser, where zinc is recovered by bubbling through a molten zinc bath.
en.wikipedia.org All materials, solid or liquid, have a small vapour pressure, and their outgassing becomes important when the vacuum pressure falls below this vapour pressure.
en.wikipedia.org