Unverified75% confidenceTradeoffTime unknown
佩戴舒适度与固定牢靠度存在权衡：颈围过软虽舒适但支撑不足、牵引无效，过硬则压迫下颌和喉部；应选下颌托与枕后托分离受力、面料透气可拆洗的结构
1
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75%
Confidence
Long-term
Relevance
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