Unverified85% confidenceTradeoffTime unknown
弹力布套（透气不闷）与PVC硬套（防水防刮）不可兼得：弹力布不防水且雨天渗湿，PVC防水但不透气、长期套着箱体易发霉、且没弹性难穿脱
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85%
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Long-term
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