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巴彥淖爾鋁塑袋

所屬分類：巴(ba)彥淖爾鋁塑立體(ti)袋
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發布日期：2020-01-16

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技術參數

真空(kong)(kong)(kong)，這(zhe)一術(shu)語(yu)譯自拉丁文vacuo，其(qi)意義是虛無。其(qi)實真空(kong)(kong)(kong)應理解為氣(qi)體(ti)(ti)(ti)較稀薄(bo)的(de)空(kong)(kong)(kong)間(jian)。在指定的(de)空(kong)(kong)(kong)間(jian)內(nei)，低于一個大(da)氣(qi)壓力的(de)氣(qi)體(ti)(ti)(ti)狀態(tai)(tai)統稱(cheng)為真空(kong)(kong)(kong)。真空(kong)(kong)(kong)狀態(tai)(tai)下氣(qi)體(ti)(ti)(ti)稀薄(bo)程度稱(cheng)為真空(kong)(kong)(kong)度（degreeofvacuum），通(tong)常用(yong)壓力值(zhi)表示。因此真空(kong)(kong)(kong)包裝(zhuang)實際上不是完全(quan)真空(kong)(kong)(kong)的(de)，采用(yong)真空(kong)(kong)(kong)包裝(zhuang)技(ji)術(shu)包裝(zhuang)的(de)食品容器內(nei)的(de)真空(kong)(kong)(kong)度通(tong)常在600-1333Pa。所以，又將真空(kong)(kong)(kong)包裝(zhuang)稱(cheng)為減壓包裝(zhuang)或排(pai)氣(qi)包裝(zhuang)。