Unverified75% confidenceTradeoffTime unknown
12V直流扇功耗与风量矛盾：连续运行的舱内通风扇选低耗型（<0.5A/6W）以免拖垮电瓶，需大风量的引擎舱抽风扇应仅在启动前及运行时短时使用
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75%
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Long-term
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