这是个什么概念呢？ 150磅的人给地面的压力仅为3磅每平方英尺。
To put that pressure in perspective, a 150 pound person exerts only about 3 pounds per square inch.
和音爆有关的气压变化只有每平方英尺几磅——大约是坐电梯向下两到三层所感受到的气压变化。
The change in air pressure associated with a sonic boom is only a few pounds per square foot — about the same pressure change experienced riding an elevator down two or three floors.
音爆是以每平方英尺的超压磅数来测量的。
Sonic booms are measured in pounds per square foot of overpressure.
音爆是以每平方英尺的超压磅数来测量的。
Sonic booms are measured in pounds per square foot of overpressure.
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