[KongchangAI]
Unverified50% confidenceDecision RuleTime unknown

电动牙刷刷头无论是否磨损都应每3个月更换,刷毛磨损后清洁效率下降30%以上,带蓝色/绿色指示毛的刷头褪色50%即为更换信号

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50%
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Long-term
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MCP
get_claim(id=462902)