[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

振动频率覆盖10-60Hz、且提供≥5档可调的机型才能兼顾松动深部痰液(低频20-35Hz穿透力强)和引流表层痰液(高频35-50Hz),单一固定档位机型仅适合痰量少的轻症患者

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82%
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Long-term
Relevance
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