[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

脉冲频率1200-1400次/分钟是有效清洁牙缝的关键指标,低于1000次/分钟清洁力明显不足,选购时应关注脉冲频率而非仅看水压

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Long-term
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