hydraulic

hydraulic — 形容詞

1. using the force of liquid that moves under pressure through pipes or tubes to ma

1.形容詞B2
釋義

液壓的

利用液體壓力驅動機械的

using the force of liquid that moves under pressure through pipes or tubes to make a machine or piece of equipment work

例句

The hydraulic lift raised Zuri's car so she could inspect the brakes.

液壓升降機把 Zuri 的車抬起來，讓她可以檢查煞車。

attributive: hydraulic + lift — equipment powered by liquid pressure

Aarav used a hydraulic jack to lift the corner of the old wooden shed.

Aarav 用液壓千斤頂抬起舊木棚的一角。

hydraulic jack — tool for lifting heavy objects

同義詞
  • 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

反義詞
  • manual

    operated by human effort rather than liquid pressure

  • pneumatic

    operated by compressed air or gas rather than liquid

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

❌The factory doors open with a hydraulic system that uses compressed air.
✅The factory doors open with a pneumatic system that uses compressed air.
💡'hydraulic' means powered by liquid under pressure; 'pneumatic' means powered by compressed air or gas.

2. relating to the science that studies how liquids behave under pressure and how t

2.形容詞C1
釋義

水力學的

與水力學或液壓技術有關的

relating to the science that studies how liquids behave under pressure and how their force can be used in machines and equipment

例句

Harper studied hydraulic engineering at a university in southern Taiwan.

Harper 在臺灣南部的一所大學攻讀水力工程。

collocation: hydraulic engineering — branch of engineering

Élise gave a presentation on hydraulic systems at the science fair.

Élise 在科展中介紹了液壓系統的相關研究。

同義詞
  • 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.

常見錯誤

❌This car has a hydraulic engine.
✅This car has a hydraulic braking system.
💡engines are rarely called 'hydraulic'; the word typically describes systems, pumps, or components that use liquid pressure.