[KongchangAI]
Unverified87% confidenceDecision RuleTime unknown

多联机优选全直流变频(外机+内机均变频),APF能效值≥4.0为一级能效,长期使用比定频省电30%以上,回本周期约3-5年

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87%
Confidence
Long-term
Relevance
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