The resulting flexibility lets bones bend but not break under normal pressure.

这种结果带来的柔韧性使得骨骼可以在正常压力下弯曲而不会折断。

Physiological reactions like the bends are caused by divers incorrectly readjusting to normal atmospheric pressure.

像减压病这样的生理反应是由潜水员错误地将气压重新调整到正常大气压强引起的。

Now, 'normal' systolic blood pressure is defined as less than 120 mmHg, and a normal diastolic pressure is less than 80 mmHg.

现在，正常的收缩期血压被定义在120mmHg以下，正常的收缩压则是应该小于80mmHg。

It could even be acute medical problems like normal pressure hydrocephalus.

它甚至可能是正常压力脑积水等急性医学问题。

So,   the oil inside the pipe is pressurized (usually around 14 times normal atmospheric pressure or  over 200 PSI) to ensure that no bubbles can form.

因此，管道内的油会受到加压（通常约为正常大气压的 14 倍或超过 200 PSI），以确保不会形成气泡。

In fact, a 1979 paper authored by Friedrich Luft and colleagues, described an experiment where they gave people with normal blood pressure various amounts of sodium, going as high as around 87 grams of salt.

Friedrich Luft 及其同事在 1979 年发表的一篇论文中描述了一项实验，他们给血压正常的人摄入不同剂量的钠，最高摄入量达到了 87 克左右的盐。

So while the pressure at Venus's surface is too high for humans, 50 kilometers up in the atmosphere, the pressure's equal to the normal pressure we're used to here on Earth.

因此，虽然金星表面的压力对于人类来说太高了， 但在大气层 50 公里处， 压力等于我们在地球上习惯的正常压力。

To protect its crew a submarine must therefore be able to keep the air inside at a relatively normal pressure, which then creates a massive pressure difference between the inside and outside that its hull must resist.

因此，为了保护船员，潜艇必须能够将内部空气保持在相对正常的压力下，因此潜艇必须能够抗住内外部产生的巨大压力差。