First, he inhaled pure oxygen for 30 minutes beforehand.

首先，他事先吸入了 30 分钟纯氧。

Doctors say oxygen blenders prevent Lung and brain damage while giving babies pure oxygen.

医生说，氧气混合器在给婴儿纯氧的同时可以防止肺和脑损伤。

Practice helped him increase lung capacity, so he could hold in more of that pure oxygen.

练习帮助他增加肺活量，这样他就可以吸进去更多的纯氧。

At its peak, MOXIE produced 12 grams of 98% pure oxygen per hour, twice as much as NASA hoped for.

在高峰期，MOXIE每小时产生12克纯度为98%的氧气，是NASA希望的两倍。

Pure oxygen was being pumped into their facemask to keep them alert.

纯氧被泵入他们的面罩， 以保持他们的警觉。

It started backfilling with pure oxygen.

用纯氧进行补压。

He strolled over to it and read the rest: BREATHE PURE OXYGEN, it said.

他走到上面， 读了剩下的内容：呼吸纯氧， 它说。

A dragon's breath, even when it exhales, is composed almost entirely of pure oxygen.

龙的呼吸，即使当它呼气的时候，几乎完全是由纯氧组成的。

At the moment, most of the world's pure oxygen is made by the liquefaction and subsequent distillation of air, to separate it into its components.

目前，世界上大部分的纯氧都是通过空气的液化和之后的蒸馏得到的，并将其分解成各种成分。

Many firms are experimenting with a heating process that replaces air with pure oxygen, which produces CO2 suitable for sequestration.

许多公司正在试验用纯氧代替空气的加热过程，从而产生适合封存的二氧化碳。

Two other techniques, called gasification and oxy-combustion, work by reacting coal with pure oxygen rather than air, and thus produce exhausts that require little treatment before burial.

其他两种叫做气化和富氧燃烧的技术，用纯氧气而不是空气烧煤，这样产生的废气在掩埋之前几乎不用处理。