oil pressure; hydraulic pressure
Technical term referring to pressure exerted by oil, especially in hydraulic systems. Common in engineering, automotive, and industrial contexts.
The oil pressure is dropping, so please inspect it immediately.
This machine operates on hydraulic pressure.
This brake becomes less effective when the hydraulic pressure drops.
This crane moves its arm using hydraulic pressure.
I applied hydraulic pressure to the jack to lift the car.
水圧 refers to pressure from water, whereas 油圧 refers to pressure from oil in hydraulic machinery, so the two are easy to mix up despite sharing the 圧 suffix.
空気圧 is pneumatic (air) pressure, while 油圧 is hydraulic (oil) pressure, so learners may confuse which working fluid each term implies.
Compound of 油 (oil) and 圧 (pressure). A straightforward Sino-Japanese technical term.
hydraulic oil; hydraulic fluid