Because the air is substantially thinner at high altitudes there is substantially less oxygen.

因为在高海拔地区，空气要稀薄得多，所以氧气含量很少。

His Face was screwed up in concentration, but only feeble wisps of silver smoke issued from his wand tip.

他全神贯注地紧皱着眉头，但是他魔杖尖上只冒出几缕稀薄银色烟雾。

The air seemed thin, as though its combination of gases had little oxygen left.

空气似乎很稀薄，好像在混合气体中剩下氧气很少。

The clouds were thin today, a few streaks of sunlight escaping through far away in the west.

云层很稀薄，几缕阳光从云层里溜出来，落在遥远西边。

Thin and runny magma means gas trying to escape can do so easily.

岩浆稀薄味着气体容易逸出来。

For others, what goes up, brings them down giving them anything but a " lift into thin air" and leaving them " glassy eyed" .

对另一些人来说，上行结果则让他们失望，他们升到稀薄空气中，还让他们什么都看不清。

Thin and runny magma means gas trying to escape can do so easily, when this happens the lava will flow out of the volcano.

稀薄岩浆味着气体很容易逸出，当这种情况发生时，熔岩就会从火山中流出。

The air is thin. The temperature changes in spring and fall are extreme.

这里空气稀薄，春季和秋季气温变化又极端。

The thin mountain air made some of the climbers feel dizzy.

山上稀薄空气使一些登山者头晕起来。

Most pens at the time used thin, water-based ink which was leaky, slow drying and would seep through the fibers of the paper.

当时，大多数笔都使用是稀薄水性墨水，这种墨水容易渗漏、干得缓慢，而且会渗入纸张纤维。

One that has a thin atmosphere, and that has water oceans.

这颗行星上大气稀薄，有海水。

Indeed, phosphine seems to be safely and enthusiastically produced in all of these oxygen-poor ecosystems.

确实，看似磷化氢在这些氧气稀薄生态环境中安稳且肆无忌惮地被制造出来。

I guess you'd say they sort of pulled it out of thin air.

我想你会说他们是从稀薄空气中抽出来。

Does the air seem a bit thin to you up here?

我觉得这里空气好稀薄？

They say they're making an entirely new ingredient out of thin air using this and it could revolutionize how food is made.

他们表示正在利用稀薄空气制造一种全新食材，这可能会彻底改变食物制作方式。

That's because the air is thinner the higher you go.

这是因为所处高度越高，空气越稀薄。

The other is that the rarefied nature of astrochemistry changes the way processes work.

二是体化学其稀薄属性会改变化学反应过程。

Mars has a thinner atmosphere than earth which complicates setting down safely on the surface.

火星大气层比地球稀薄，这使得在火星表面安全降落变得困难。

Due to the fact that they don't burn up in my thin atmosphere.

我稀薄大气无法将它们燃烧。

Left behind in a forest, wood chips and thinned-out logs can still burn.

留在森林里木屑和稀薄原木仍然会燃烧。