[KongchangAI]
Unverified87% confidenceTradeoffTime unknown

风量与噪音存在硬权衡:同尺寸扇叶下想要大风量必然提高转速带来噪音,DC电机能优化低档静音但无法突破物理极限,大风量+超静音是矛盾需求

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