[KongchangAI]
Unverified85% confidenceFactTime unknown

两人配合测量能显著降低误差:一人固定头部使头顶贴头板并保持眼耳线垂直,另一人压直膝盖读脚板刻度,单人操作误差通常翻倍

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85%
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Long-term
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