[KongchangAI]
Unverified82% confidenceTradeoffTime unknown

精度越高的涡轮/超声流量传感器机型价格越贵且需定期校准,而机械式峰流速仪免维护但精度低;日常哮喘趋势跟踪机械式够用,需精确FEV1数据评估病情则必须选电子传感款

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