Unverified85% confidenceTradeoffTime unknown
硬质EVA成型外壳(带拉链贝壳式)抗压强度远高于软布包，能承受背包内挤压和轻度跌落；软质尼龙包只防刮擦不防压，机械硬盘长期用软包易因外力损坏磁头
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85%
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Long-term
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