For that, we need to know the overall air pressure, since more molecules in a certain volume means more pressure.

为此，我们需要知道整体气压，因为在一定体积中更多的分子意味着更大的压力。

Larger numbers mean higher sound pressure, what's called amplitude.

数字越大意味着声压越高，也就是所谓的振幅。

This means that, the slower the fluid flows, the more pressure it puts on the pipe itself.

这意味着，流动越慢 流体增加了对管本身的压力。

There are three important factors that affect mean arterial pressure: cardiac output, total peripheral resistance, and blood volume.

心输出量，总外周阻力和血容量。

That's because more body weight means more pressure on your legs, and higher blood pressure in your veins--called venous hypertension.

那是因为更多的体重意味着更多的腿部压力，以及更高的静脉血压——称为静脉高压症。

The average arterial blood pressure during a single cardiac cycle is called the mean arterial pressure (MAP).

单个心动周期中的平均动脉血压称为平均动脉压（MAP）。

Yes. And stress means pressure or worry caused by a difficult situation. OK, we'll find out if you're right or wrong later on.

是的。压力就是困难的处境给人们带来的压迫感或者焦虑。好的，我们稍后来揭晓你的选择是否正确。

Instead of trying to consider the constant fluctuations of blood pressure, we will look at blood pressure in terms of mean arterial pressure (MAP).

我们将以平均动脉压（MAP）来衡量血压，而不是考虑血压的持续波动。

If not compensated by a decrease in any other variables, we can say that when these three factors increase, so does the mean arterial pressure.

如果没有通过其他任何变量的减少来补偿，我们可以说，当这三个因素增加时，平均动脉压也会增加。

If not compensated by a decrease in other variables, we can say that when these three factors increase, so does the mean arterial pressure.

如果不能通过其他变量的减少来补偿，我们可以说，当这三个因素增加时，平均动脉压也会增加。

The higher the cardiac output, the higher the mean arterial pressure, because there is more blood being pumped out of the heart and flowing into the arterial system.

心输出量越高，平均动脉压越高，因为有更多的血液从心脏泵出并流入动脉系统。

Now though the optimal post-cardiac arrest blood pressure remains unknown; a mean arterial pressure of 65 mm of Mercury or greater is a reasonable goal per scientific studies and current guidelines.

现在，尽管最佳的心脏骤停后血压仍然未知；根据科学研究和现行指南，平均动脉压为 65 毫米汞柱或更高是一个合理的目标。

The CSF is held under a little bit of pressure, below 200 mm of H2O, which is just under 15 mm of mercury - - which is less than a fifth of the mean arterial pressure.

脑脊液承受一定的压力，在200毫米水柱以下换算成汞柱，只在15毫米汞柱以下——小于五分之一的平均动脉压。

Despite this law, good food is still going to landfill at a time when the pressures of the pandemic have meant that one in four households experienced food insecurity at some point during 2020.

尽管有这项法律，但在大流行的压力意味着四分之一的家庭在 2020 年的某个时候经历了粮食不安全之际，优质食品仍将被填埋。