Unverified80% confidenceTradeoffTime unknown
硬壳箱防护性最强但登山/骑行时体积僵硬难塞入常规背包，需权衡；软包可压缩塞入行李但抗压有限，多式联运（火车+徒步）场景应优先可折叠软包+托运时另加保护
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80%
Confidence
Long-term
Relevance
-
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