[KongchangAI]
Unverified70% confidenceDecision RuleTime unknown

折叠机构是轻量化车的核心磨损点,选一体成型主梁或专利折叠结构(如三角形锁扣),避免多铰链设计——铰链越多长期骑行晃动异响风险越高

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70%
Confidence
Long-term
Relevance
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get_claim(id=139061)