Unverified85% confidenceDecision RuleTime unknown
长时间背负(>1小时)应选择带铝合金腰撑或加宽腰凳(腰凳宽度≥20cm)的款式,将重量转移到父母胯部而非肩部,肩带减压厚度需≥2cm
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85%
Confidence
Long-term
Relevance
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