[KongchangAI]
Unverified85% confidenceTradeoffTime unknown

真空保温饭盒的保温性能与分隔格数成反比:整体不分隔单胆保温最佳,2-3格分隔会因隔层薄壁增加散热面积,保温时间通常缩短1-2小时。要保温又要分格应选带独立真空子桶的堆叠式设计

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