Unverified82% confidenceDecision RuleTime unknown
儿童遮阳伞伞面直径建议80-90cm(展开直径),既能覆盖儿童头肩部又不至过大过重;直径<75cm遮荫面积不足,>100cm则重量和风阻显著增加不适合儿童操作
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82%
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Long-term
Relevance
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