[KongchangAI]
Unverified90% confidenceFactTime unknown

体脂秤采用生物电阻抗法(BIA)测量,普通四电极秤误差可达±3%~5%,仅适合追踪趋势而非绝对精度;需要接近医疗级数据应选八电极(手脚同测)机型,误差可控制在±2%以内

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