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。

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。