Unverified85% confidenceTradeoffTime unknown
双层帐（内账+外账分离）比单层帐更透气、抗凝露强，适合大部分三季环境；单层帐更轻但内壁易凝水，仅适合干燥高海拔或极限轻量场景
1
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85%
Confidence
Long-term
Relevance
-
First Seen
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