Unverified85% confidenceDecision RuleTime unknown
叠加使用两张垫子时R值可直接相加，例如R值2的泡沫垫+R值3的充气垫=R值5，比单独购买高R值充气垫更经济且冗余更安全
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Unverified充气垫R值可通过叠加计算：将泡沫垫（R值约2）与充气垫（R值约3）叠用可获得约R5的组合隔热效果，比单买一张高R值垫更灵活90% similarUnverified充气垫R值和自重、收纳体积正相关：同等R值下，带内部隔热层（如太空棉/反射膜）的充气垫比单纯充气的更暖但更重更贵79% similarUnverified带充气/可调气囊外展垫的支具能微调外展角度和承托力，比固定角度泡沫垫更灵活适应消肿过程，但结构更复杂、漏气风险高、价格更高76% similarUnverified常见用法是将其置于充气垫之下叠加使用：既能提升总R值防止充气垫被刺穿，又能在充气垫漏气时提供兜底保暖，购买前可考虑是否有此需求。72% similarUnverified自充气垫是泡沫与充气的折中：开阀自动吸气省力、有一定R值，但重量和体积都比纯充气大，适合自驾和低强度露营，不适合重装徒步71% similar
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