| Crutchfield tongs |
[William Gayle Crutchfield, U.S. surgeon, 1900?1972] A traction device whose pins are inserted into the skull to distract and/or immobilize the neck. Crutchfield tongs are used to stabilize fractures of the cervical spine.
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| crutch |
slang for a mechanical bridge.
출처: ez-shot-ghost-ball.com/pool_billiards_glossary.htm...
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