[KongchangAI]
Unverified80% confidenceFactTime unknown

电子肺活量仪的测量误差应≤±3%或±0.05L(取较大值),符合ATS/ERS肺功能测量标准;机械式峰流速仪精度较低(±10%左右),仅适合趋势监测不适合诊断

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