[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

调节越顺滑(凸轮扣)通常锁定力越依赖机械结构,长期磨损后易打滑;纯摩擦式虽调节慢但打滑风险低,重训练者应优先看锁扣是否有金属止逆结构

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80%
Confidence
Long-term
Relevance
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