Unverified85% confidenceTradeoffTime unknown
保温性与便携性冲突:真正能保温3-4小时的是不锈钢真空焖烧罐结构,但这类基本无法做分格且笨重;普通带保温袋的分格饭盒实际只能维持温热1小时左右,指望它中午还烫需配合微波复热
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85%
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