In order to be efficient, the plane must be light so pilots sacrificed not only cockpit space but pressurization.

为了实现高效，这架飞机必须很轻，这样飞行员不仅牺牲了驾驶座的空间，还有密封性。

Our goal when we're designing these habitats is to introduce an airtight structure that can withstand internal pressurization, which is what will allow people to live in a breathable and temperate environment on the inside.

我们设计栖息地的目标是设计出一种可以承受 内部增压的密闭结构，让人类可以在可呼吸、 温和的内部环境中生存。让人类可以在可呼吸、 温和的内部环境中生存。我们部署在火星上的机器人。

Before pressurization, planes would fly up to 10,000 feet or around three kilometers, where the partial pressure of oxygen is 15 kilopascals, just at the limit of what people can handle.

在加压之前， 飞机可以飞到10,000英尺或大约3公里的高度，此时的氧气分压为15千帕，刚好是人类能够承受的极限。

According to the Smithsonian Museum`s " Air and Space" magazine, the lifespan of a commercial airplane doesn`t necessarily depend on its age, but on the fatigue, that pressurization causes on the plane`s metal.

根据史密森尼博物馆的《航空航天》杂志，商用飞机的寿命不一定取决于它的年龄， 而是取决于加压对飞机金属造成的疲劳。