Unverified75% confidenceSolutionTime unknown
户外长途保温方案：选1L以上316不锈钢真空壶+旋盖密封+防撞底+可拆洗结构，24h保温≥50℃可满足过夜露营热饮需求；配合分离式杯盖减少主壶开盖散热
1
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75%
Confidence
Long-term
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