An intracranial pressure above 15 millimeters of mercury is considered high.

颅内压正常值为不超过15毫米汞柱。

The pressure of air at sea level is about 760 millimeters of mercury.

海平面上的空气压力大约是 760 毫米汞柱。

The lower esophageal sphincter has a resting pressure of 10 to 45 millimeters of mercury.

食管下括约肌的静息压力为10至45毫米汞柱。

Blood pressure is recorded in millimeters of mercury (mmHg) with systolic pressure written first, followed by diastolic pressure.

血压以毫米汞柱（mmHg）记录，先记录收缩压，然后记录舒张压。

But the pressure gets lower, which means the partial pressure of oxygen also decreases to about 45 millimeters of mercury at the top of Mt. Everest.

但是压力变低了，这意味着在珠穆朗玛峰山顶，氧气的分压也下降到大约 45 毫米汞柱。

Veins are a passive, more limpy process because it's the bottom number of millimeters of mercury on your blood pressure, and it's the blood that is now deoxygenated.

静脉是一个被动的、更脆弱的过程，因为它是血压的最底层毫米汞柱，现在血液缺氧了。

But since only about 21 percent of that air is oxygen, oxygen's part of that pressure — or partial pressure of oxygen — is 21% of 760, or about 160 millimeters of mercury.

但是由于空气中只有大约 21% 是氧气，氧气的部分压力——或者氧气的分压——是 760 的 21%，或者大约 160 毫米汞柱。

When that air mixes with the air deep in your lungs — including a lot of air that you haven't exhaled yet — the partial pressure of oxygen drops to about 104 millimeters of mercury.

当这些空气和你肺部深处的空气混合时——包括许多你还没有呼出的空气——氧气的分压下降到大约 104 毫米汞柱。

For example, one 2015 study found that 100 adults who drank a high cocoa chocolate drink twice a day for one month had a drop in blood pressure of around 4 millimeters of mercury, which is a measure of pressure.

例如，一项2015年的研究发现100名成年人持续一个月，每天喝两次高可可含量的巧克力饮料，其血压下降了4毫米汞柱，毫米汞柱是血压的计量单位。