液压 (yè yā) — hydraulic pressure; hydraulic (as in 液压系统)

Definition

noun
hydraulic pressurehydraulic (as in 液压系统)

Examples

  • 液压
    Zhè tái jī qì de yè yā xì tǒng fēi cháng wěn dìng.
    The hydraulic system of this machine is very stable.
  • 液压
    Shǐ yòng shí yào zhù yì yè yā yā lì bú yào guò gāo.
    When using it, make sure the hydraulic pressure is not too high.
  • 液压
    Zhè zhǒng shè bèi kào yè yā qū dòng.
    This type of equipment is driven by hydraulics.

Origin

Compound word
构词法gòucífǎ
偏正piānzhèngModifier + head

The first part narrows down the second: it says what kind of thing the head is.

fluid
pressure

Fluid pressure: 液 names the fluid and 压 names the pressure it produces.

Characters in this word

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

Meaning part形符xíngfú
Written in full asshuǐwater
Sound part声符shēngfú
Same sound today

The left side 氵 is water, and the right side 夜 gives the sound; together they form 液, a liquid, like water.

Open 液 →

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 壓; 压 is its simplified writing.

Meaning part形符xíngfú
dust
Sound part声符shēngfú
yàn
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

The traditional form 壓 is built from 土, dust, and 厭, which gives the sound; 压 is the simplified form of 壓.

Open 压 →

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