| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024knee′ ac′tion, - Automotivea form of suspension for the front wheels of a vehicle permitting each wheel to rise and fall independently of the other.
- Mechanicslimited and temporary bending at a joint provided to relieve a structure or machine part under stress.
- 1865–70, for an earlier sense
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