Unverified82% confidenceTradeoffTime unknown
风量与噪音存在正相关权衡：同尺寸风机风量越大转速越高噪音越大。可选大一号管径(如110mm换150mm)配低转速运行，实现大风量+低噪音，但占用空间和吊顶开孔更大
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82%
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