[KongchangAI]
Unverified78% confidenceFactTime unknown

脉冲频率(每分钟脉冲次数)也是清洁力关键指标,1200-1400次/分钟为主流有效范围,脉冲式比连续水流对牙龈按摩和冲洗效果更好

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78%
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