1.
rare gasses; lightheaded from the rarefied mountain air.
稀薄的气体；在稀薄的高山空气中人头昏眼花。
2.
a sound wave causes periodic rarefactions in its medium.
高山空气的稀薄导致缺氧。
3.
the rarefied air of the Andes
安第斯山脉的稀薄空气.
4.
the rarefied air(ie with little oxygen)of the Andes
安第斯山脉的稀薄空气（缺氧）.
5.
Mountain climbers often carry oxygen tanks because the air is very thin at high altitudes.
登山者通常会携带氧气筒，因为在极高的地带空气相当稀薄。
6.
air is thin at high altitudes; a thin soup; skimmed milk is much thinner than whole milk; thin oil.
海拔高的地方空气很稀薄；稀汤；脱脂乳比全脂奶要稀的多；稀油。
7.
At 6,000 feet the density of the air was sensibly dimished.
在六千尺高的地方，空气显著地稀薄了。
8.
rarefied-gas aerodynamics at very high altitude
高空稀薄气体空气动力学
9.
The cold thin air of the mountains yielded to sweltering heat as they decended.
他们走下山来，寒冷稀薄的空气逐渐为酷热所取代。
10.
rarefied aerodynamics
稀薄气体空气动力学
11.
As this altitude the air is very thin and the weather is uncertain.
在这种高度上，空气十分稀薄，气候变幻无常，
12.
At this altitude the air is very thin and the weather is uncertain.
在这样高度上，空气十分稀薄，气候变幻无常，
13.
Investigation on Rarefied Gas Aerodynamic Characteristic of Reentry Module;
载人飞船返回舱高空稀薄气动特性研究
14.
We had great difficult in breading, for the air is thin. Everyone was breathless when we got to the top.
由于空气稀薄，我们呼吸非常因难，当我们到达山顶时，每个人都气喘吁吁的。
15.
Those of us who have been in mountainous terrain know that the higher up we go, the thinner and colder the air becomes.
凡是到过山区的人都知道，越到高处，空气就变得越稀
16.
The higher you climb up the mountain, the rarer the air is.
越往山上爬,空气越稀
17.
I am not a subtle air distributed through these members.
我不是分散在那些部分之间的稀薄空气。
18.
At this altitude, the air is very thin and the weather is uncertain. So the climbing is very difficult.
在这样高度上，空气十分稀薄，气候变幻无常，因此攀登非常困难。