How to say "hydraulic" in Japanese
Choosing the right word
- 水理すいりnounA technical term for the water side of 'hydraulic' — the hydrologic sense of water flow and water systems — seen mainly in specialist writing; for oil-driven machinery it is not the word you want.
- 油圧式ゆあつしきno-adjectiveThe mechanical sense of 'hydraulic': it describes machines, brakes and similar equipment that work by oil pressure, marking them as being of the hydraulic type.
For the water-flow, hydrologic sense of 'hydraulic' use 水理, while 油圧式 describes machines, brakes and similar equipment driven by oil pressure; both are less common, technical choices.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
