Unverified80% confidenceTradeoffTime unknown
拉杆箱轮子权衡：双排静音万向轮滚动稳但占内部空间约2-3cm深，单排轮省空间但转向差；铺装路面双排优先，石板路/山地选大直径包胶轮
1
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80%
Confidence
Long-term
Relevance
-
First Seen
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