hyd

IPA/hˈɪd/
IPA/hˈɪd/

hyd — abbreviation

1. the written short form of hydraulics, especially in diagrams, repair notes, and

1.縮寫C1
釋義

the written short form of hydraulics, especially in diagrams, repair notes, and course labels about machines powered by liquid pressure

例句

The mechanic circled the hyd. line that fed the crane arm.

hyd. line in a repair note

Marco chose hyd. instead of welding for next term's shop elective.

同義詞
  • hydraulics

    the full technical term, used in speech and formal prose

文法句型

hyd. + line or pump

hyd. leak

course title + hyd.

用法筆記

Used mainly in technical writing, labels, and course shorthand rather than ordinary conversation. In maintenance contexts, it usually points to hydraulic parts, fluid pressure, or power-driven equipment.

常見錯誤

❌The truck uses hyd.
✅The truck uses hydraulics.
💡'hyd.' is usually a written shorthand, not the normal full noun inside a sentence.
❌The hyd. chapter explains pressure in still water.
✅The hyd. chapter explains how liquid pressure powers the machine.
💡in this sense, 'hyd.' points to hydraulics, not hydrostatics.

2. the written short form of hydrostatics, used in physics notes and chapter headin

2.縮寫C2
釋義

the written short form of hydrostatics, used in physics notes and chapter headings about pressure in liquids that are not moving

例句

Lien copied the hyd. formula beside the tank-depth diagram.

hyd. formula in class notes

Week seven switches from fluids in motion to hyd. problems.

同義詞
  • hydrostatics

    the full technical term, common in textbooks and lectures

文法句型

hyd. + formula or note

hyd. chapter

hyd. problems

用法筆記

This sense appears mainly in academic writing about fluid pressure at rest. If the context is pumps, moving oil, or machine controls, the abbreviation usually means the hydraulics sense instead.

常見錯誤

❌The hyd. unit lifts the forklift arm.
✅The hyd. chapter explains pressure in still water.
💡this sense is the school subject hydrostatics, not hydraulic machinery.
❌We tested hyd. by opening the oil valve.
✅We tested hyd. by calculating pressure at different water depths.
💡hydrostatics deals with still fluids, not powered flow systems.