[KongchangAI]
Unverified90% confidenceFactTime unknown

体脂秤采用生物电阻抗法(BIA)测量,体脂率误差普遍在±3%~5%,医疗级双频/八电极机型可降至±2%,普通四电极机型仅适合看长期趋势而非绝对值

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