- a simple machine for raising weights in which a rope unwinding from a wheel is wound onto a cylindrical drum or shaft coaxial with or joined to the wheel to provide mechanical advantage
| 单词 | wheel and axle |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 wheel′ and ax′le,
Collins Concise English Dictionary © HarperCollins Publishers:: wheel and axle n
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