Unverified75% confidenceTradeoffTime unknown
护脊硬质背板使书包自重和整体厚度偏大,对身材瘦小或低年级孩子空背时会显得笨重,选购前建议确认孩子体型与书包尺寸匹配
1
Sources
75%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified硬质护脊背板在提供支撑的同时会增加书包自重,书包本身空载重量相对软背款偏高,低年级体型较小的孩子需注意净重是否在可承受范围内。92% similarUnverified硬质护脊背板与加固结构会带来书包自重偏高,低年级或体型偏小的孩子空包背负也有一定分量89% similarUnverified书包高度应与孩子背部匹配:上沿不超过肩线,下沿不低于腰线(髂骨上方2cm),过大的书包会导致重心后移和含胸驼背86% similarUnverified购买前先确认孩子的身高体型与书包适龄段是否匹配,护脊书包只有贴合背部才能发挥减压作用85% similarUnverified身高与书包不匹配时不建议购买:书包高度应从肩部到腰线之间,底部不超过臀部下缘;给低龄孩子买'能用好几年'的大号书包会导致重量下坠拉伤肩背84% similar
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