[KongchangAI]
Unverified75% confidenceDecision RuleTime unknown

儿童冲牙器建议选择脉冲频率适中(约1200-1400次/分钟)的机型,频率过高水流冲击感强低龄儿童更易抗拒;部分成人机型脉冲频率可达1400次以上并不适合儿童初期使用

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