Unverified80% confidenceTradeoffTime unknown
保温时长与重量正相关：同容量下真空层越厚、壁越厚保温越久但越重，通勤日常携带的500ml壶控制在300g以内更合适，超350g单手饮用负担明显
1
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80%
Confidence
Long-term
Relevance
-
First Seen
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