Unverified85% confidenceTradeoffTime unknown
手卷压缩袋无需真空泵，靠手卷挤压排气，但排气彻底度低于抽气式真空袋，压缩率约50-60%，对追求极致压缩体积的场景应选电动抽气式而非手卷式
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85%
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