真空包裝+氮氣 - 社會議題
By Tom
at 2012-05-28T00:00
at 2012-05-28T00:00
Table of Contents
發問一下...有關真空包裝的問題1.真空包裝跟充氣真空包裝的差別,為甚麼要加氮氣,可以加其他氣體嗎??2.各有甚麼用途,請舉出這兩種包裝的實例3.這兩種包裝的作法,材料只差加不加氣體一樣嗎?4.原理是甚麼??問題有點多...也希望各位能詳細為小弟解答如果有照片會更好
Tags:
社會議題
All Comments
By Eden
at 2012-05-29T02:49
at 2012-05-29T02:49
By Mia
at 2012-06-01T23:43
at 2012-06-01T23:43
Related Posts
內向的人(我)適合當諮商心理師嗎???(20點!!!^^)
By Anthony
at 2012-05-27T00:00
at 2012-05-27T00:00
關於第一次援交與愛滋病的幾個問題
By Todd Johnson
at 2012-05-27T00:00
at 2012-05-27T00:00
(0.0)耶穌-為什麼非死不可?!
By Jake
at 2012-05-27T00:00
at 2012-05-27T00:00
過敏性鼻炎問題困擾
By Olive
at 2012-05-26T00:00
at 2012-05-26T00:00
請教我對付樓上的惡鄰居
By Ingrid
at 2012-05-25T00:00
at 2012-05-25T00:00