[KongchangAI]
Unverified85% confidenceSolutionTime unknown

睡袋的保暖来自蓬松填充产生的静止空气层,因此需搭配睡垫使用;睡垫的R值决定与地面隔热效果,冬季R值需≥4,否则背部会被地面吸走热量导致睡袋温标失效

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