[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

填充垫回弹力过硬(高密度海绵35D以上)会导致宝宝翻身撞到不适,但太软(记忆棉/低密度<25D)易被压塌形成新缝隙;婴幼儿防坠场景优选30-35D中等硬度慢回弹材料,兼顾支撑与缓冲

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