Paul's stillsuit rode easily on his body and he was only distantly aware of his nose plugs, the breathing mask.

Paul 的蒸馏服轻而易举地套在身上，他只能隐隐约约地感觉到他的鼻塞，也就是呼吸面罩。

Then, they hooked them up to a special breathing mask that supplied them with the same amount of carbon dioxide that they had in their capillaries.

然后，他们让大家戴上特殊的呼吸面罩，这个面罩可以为他们提供与毛细血管中相同量的二氧化碳。