[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

长度选4-5米最实用:太短两车距离近容易追尾碰撞,太长(>9米)弹性绳蓄能过大断裂风险高。冰雪湿滑或视线差路况选5米以上留足缓冲

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Long-term
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https://kongchang.com/claim/123633
API
curl https://kongchang.com/api/v1/knowledge/claims/123633
MCP
get_claim(id=123633)