Unverified85% confidenceTradeoffTime unknown
轻量化与抗风/遮阳面积互斥:追求200g以下超轻伞必然牺牲伞骨强度和伞面大小,大风天易翻伞;两者不可兼得,需按主要场景取舍
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85%
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Long-term
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