pressure level

• 技术术语，指流体或气体在单位面积上施加的力的大小，在声学中常用分贝测量，在物理学中常用帕斯卡测量。

A technical term referring to the magnitude of force per unit area exerted by a fluid or gas, often measured in decibels for sound or pascals for physical pressure.

1. Sound Pressure LevelC1formal

   A measure of the pressure of a sound wave relative to a reference value, usually expressed in decibels (dB).

   声压级

   • The sound pressure level at the concert exceeded 100 dB.
   • Engineers measured the pressure level inside the acoustic chamber.
   • High pressure levels can cause hearing damage over time.

2. Atmospheric or Fluid Pressure LevelC1formal

   The amount of force exerted by a fluid (gas or liquid) per unit area, often measured in pascals or psi.

   压力水平

   • The pressure level in the hydraulic system must be monitored regularly.
   • Atmospheric pressure level decreases with altitude.
   • The pressure level inside the boiler reached critical limits.