Unverified78% confidenceTradeoffTime unknown
护肩垫越厚防勒感越好，但过厚（>2cm海绵）会在碰撞时被压缩产生安全带松弛量，反而降低约束效果；日常选1-1.5cm透气记忆棉即可兼顾舒适与安全
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