Unverified87% confidenceDecision RuleTime unknown
普通背包面料防泼水（DWR涂层）只能应付小雨，遇暴雨会渗水，真正防水需IPX等级或TPU压胶焊接工艺（漂流包/防水袋），常规户外包应额外配防雨罩
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87%
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Long-term
Relevance
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