Unverified78% confidenceDecision RuleTime unknown
肩带需≥5cm宽度且有加厚衬垫，配合胸扣分散重量：防盗包自重偏高，窄肩带长时间背负易压迫肩部，可调节胸扣能防止负重时背包晃动被拉开
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