noun
normal pressure; atmospheric pressure
Technical term used in physics, chemistry, and engineering to refer to standard atmospheric pressure (1 atm) or non-pressurized conditions.
この実験は常圧で行う。
This experiment is conducted at normal pressure.
常圧蒸留は石油精製の基本工程だ。
Atmospheric distillation is a fundamental process in oil refining.
Compound of 常 (じょう, 'normal, usual') and 圧 (あつ, 'pressure').