hydraulic
hydraulic — adjective
1. using the force of liquid that moves under pressure through pipes or tubes to ma
using the force of liquid that moves under pressure through pipes or tubes to make a machine or piece of equipment work
The hydraulic lift raised Zuri's car so she could inspect the brakes.
attributive: hydraulic + lift — equipment powered by liquid pressure
Aarav used a hydraulic jack to lift the corner of the old wooden shed.
hydraulic jack — tool for lifting heavy objects
Mira operates a hydraulic press at the factory where car parts are made.
Min's bicycle has hydraulic brakes that work well even on wet roads.
- fluid-powered
broader term covering both hydraulic (liquid) and pneumatic (air) systems
- liquid-operated
more descriptive; less common in technical writing but clearer for learners
文法句型
hydraulic + noun (machine/equipment)
用法筆記
Nearly always appears before a noun that names a type of machine, tool, or system. The liquid used is usually oil, not water, despite the Greek root meaning 'water'.
常見錯誤
2. relating to the science that studies how liquids behave under pressure and how t
relating to the science that studies how liquids behave under pressure and how their force can be used in machines and equipment
Harper studied hydraulic engineering at a university in southern Taiwan.
collocation: hydraulic engineering — branch of engineering
Élise gave a presentation on hydraulic systems at the science fair.
The professor explained the basic principles of hydraulic power to her students.
Kevin works for a company that builds hydraulic equipment for mining operations.
- fluid-mechanical
more specific; used in academic contexts to describe the study of fluid mechanics applied to machinery
文法句型
hydraulic + noun (system/engineering/principle)
用法筆記
Frequently appears with academic or technical nouns such as system, engineering, principle, and power. Less common than sense 1 in everyday speech; most often found in textbooks, university courses, and technical manuals.