Unverified80% confidenceSolutionTime unknown
长时间户外保冷方案:加厚软体保温袋(20L+)+2-3块可复用冰砖(蓝冰)分层放置,冰砖置于食物上方(冷气下沉),可延长保冷至10-12小时;单纯依赖保温袋无冰源夏季仅维持3-4小时
1
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80%
Confidence
Long-term
Relevance
-
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