这件文物，接触空气之后，变成了粉末。
吸足了“延年益寿”的新鲜空气之后，他们就会重获健康。
With copious lungfuls of that “life-prolonging air” inside them, they would be themselves again.
对于氧气的需要解释了玻义耳的菌类，为何在隔绝空气之后就停止发光了。
The need for oxygen explains why Boyle's fungus stopped glowing when the air was removed.
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