[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

防水材质越厚重防水越可靠但重量越大:500D PVC涂层耐磨全防水但一个35L包自重可达1.5kg以上;轻量化210D尼龙+涂层的徒步包可轻至700g但耐磨和防水性下降,长途徒步需在防水可靠性与自重间权衡

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80%
Confidence
Long-term
Relevance
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https://kongchang.com/claim/78148
API
curl https://kongchang.com/api/v1/knowledge/claims/78148
MCP
get_claim(id=78148)