[KongchangAI]
Unverified78% confidenceTradeoffTime unknown

扩容结构与整体防水性能存在天然矛盾:可折叠外扩仓的拉链和折叠布料接缝处是防水薄弱点,无防泼水涂层或压胶处理的伸缩背包在雨天扩容仓会渗水,需确认扩容仓布料克重≥600D且有DWR涂层

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78%
Confidence
Long-term
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