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[請問] 氣體鋼瓶剩餘壓力少於0.04Mpa會怎麼樣？
Sep 29th 2013, 10:12, by forgo 

最近在研究真空氮氣填充咖啡
的方法、看到氮氣氣瓶的注意
事項有一條是：「氣瓶內的氣
體不能全部用盡，必須留存大
於0.04Mpa。」
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