above sea level

基本解释

For the first few thousand feet above sea level the rate of pressure decrease is in the neighborhood of 1 inch of pressure for each 900 to 1000 ft.
在離海麪幾千英尺高度上（在拔海高度數千英尺以下）氣壓遞減率大約是每900到1000英尺高度下降1英寸汞柱左右。
For the first few thousand feet above sea level the rate of pressure decrease is in the neighbourhood of 1 inch of pressure for each 900 to 1000 ft.
在離海麪幾千英尺高度上（在拔海高度數千英尺以下）氣壓遞減率大約是每900到1000英尺高度下降1英寸汞柱左右。
With 80 percent of the country less than 3.3 feet above sea level, rising ocean levels and a potential increase in the intensity of tropical storms pose a serious threat.
這個國家80% 僅超過海平麪少於3.3英尺，正在提陞的海平麪以及強烈的熱帶風暴的增加嚴重威脇著這個國家。

The city is more than two thousand meters above sea level, near the southern Rocky Mountains in northern New Mexico.
And that is the highest point in Israel, it rises about 10,000 feet above sea level. The central mountain area, those are between 4000 and 10,000 feet above sea level.
那是以色列的最高點，它大約在海平麪以上10000英尺，中央的山區，大約在海平麪以上4000到10000英尺之間。
耶魯公開課 - 舊約導論課程節選
In warmer climates, snow is known to fall in areas over four thousand nine hundred meters above sea level.

We were more than four thousand metres above sea level, and the altitude rendered me useless.
NEWYORKER: The Idiot President