随着海拔高度的增加，大气压降低，氧分压随之下降，低压缺氧成为危害机体机能活动的主要因素。
As altitude increasing, air pressure as well as oxygen pressure does decrease. Hypobaric hypoxia has become the main factor of interfering with life activity.
海拔每上升1000米大气压力- - -也就是空气密度- - -会降低大概11%(虽然精确的公式比这要更复杂。)
Every 1000 metres increase in altitude reduces atmospheric pressure - and hence the density of the air - by about 11 per cent (though the precise formula is more complicated than this).
当外界压强低于一个大气压时，水的沸点就降低。
When the external pressure is below atmospheric pressure, the boiling point will be lower .
大气压力随高度增加而降低，大气密度也随着高度增加而降低。
Atmospheric pressure decreases with increase in altitude and so does the density of the atmosphere.
宇航员已经降低了太空船的大气压。
The astronauts had removed all air pressure from the spacecraft.
当外界压强低于一个大气压时，水的沸点就降低。
When the external pressure is below atmospheric pressure, the boiling point will be lower.
大气压力随高度增加而降低，大气密度也随高度增加而降低。
Atmosphere pressure decreases with increase in altitude and so does the density of atmosphere.
降低大气压力以上的表面1平方米与只有10 %，已造成升力的约1000公斤！
Lowering the atmospheric pressure above a surface of 1 m2 with only 10% will already cause a lifting force of about 1000 KG!
大气压力随高度的增加而降低，大气的密度也如此。
Atmospheric pressure decreases with the increase in altitude and so does the density of the atmosphere.
大气压力随高度的增加而降低，大气的密度也如此。
Atmospheric pressure decreases with the increase in altitude and so does the density of the atmosphere.
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