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轮轴 (lún zhóu) — wheel and axle (simple machine); wheel axle (mechanical part)

Definition

Refers both to the simple machine 'wheel and axle' (a physics concept) and to the mechanical shaft part of a wheel. Example 1 uses the simple-machine sense; example 2 uses the axle part.

noun
wheel and axle (simple machine)wheel axle (mechanical part)
Measure word · 个

Examples

  • 轮轴。
    lún zhóu Shì jiǎn dān jī xiè de yì zhǒng.
    The wheel and axle is a type of simple machine.
  • 轮轴。
    Zì xíng chē de lún zhóu xū yào dìng qī shàng yóu.
    The wheel axle of a bicycle needs regular oiling.
  • 轮轴。
    Zhè ge jī qì yòng le lún zhóu yuán lǐ lái shěng lì.
    This machine uses the wheel-and-axle principle to save effort.

Origin

Compound word
构词法gòucífǎ
联合liánhéCoordinate

Two parts of equal weight, alike or opposite in meaning, standing side by side.

轮lúnwheel
轴zhóuaxle

轮 names the wheel, and 轴 names the axle.

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.

This origin belongs to the traditional form 輪; 轮 is its simplified writing.

Meaning part形符xíngfú
車車jūcarriage
Sound part声符shēngfú
侖
侖lún輪lún
Same sound today

The traditional form 輪 uses 車, a carriage, and 侖 for the sound; the simplified 轮 is a later shorthand.

Open 轮 →

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 軸; 轴 is its simplified writing.

Meaning part形符xíngfú
車車jūcart, carriage
Sound part声符shēngfú
由
由yóu軸zhóu
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

The traditional form 軸 pairs 車 (cart) with a part that gives the sound, 由; it pictures an axle passing through a cartwheel. The simplified 轴 is a later abbreviation.

Open 轴 →
Appears in
Miscellaneous ObjectsTechnology & Engineering

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