Unverified80% confidenceTradeoffTime unknown
抽气阀密封口和封条式（zipper）封口是两种方案：封条式可反复开合但密封性随使用次数下降，热封式一次性密封但气密性最好，长期囤粮选热封+抽气阀组合最可靠
1
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80%
Confidence
Long-term
Relevance
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First Seen
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