在正常大气压下，水到摄氏100度就会沸腾。
Water will boil at 100 degree centigrade under normal pressure.
我们将零点定义为每种元素，在室温和正常大气压下，在其自然状态下的焓。
What we define as zero is the enthalpy of every element in its natural state at room temperature and ambient pressure.
在正常大气压下，二氧化碳是无色无味气体，密度比空气大，是空气的1.5倍。
Under normal atmospheric conditions, carbon dioxide exists as a colorless, odorless gas which is about 1.5 times heavier than air.
大气压低于正常值的气团；常伴有降水。
杨利伟进一步解释说：“我们的很多物品在上天前都是有大气压封到里面，随着在太空中飞行，可能会泄压也会有一些声音发出，这样的话需要我们去辨认，我想这些都是很正常的事情。”
He said air leaking out of the objects in the capsule could also cause noise. "I think it is normal," Yang said. "it is necessary to carefully identify the cause."
杨利伟进一步解释说：“我们的很多物品在上天前都是有大气压封到里面，随着在太空中飞行，可能会泄压也会有一些声音发出，这样的话需要我们去辨认，我想这些都是很正常的事情。”
He said air leaking out of the objects in the capsule could also cause noise. "I think it is normal," Yang said. "it is necessary to carefully identify the cause."
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