| 还是这个？ |
| 送交者: 超级大懒猫 2010月12月08日16:19:35 于 [世界军事论坛] 发送悄悄话 |
| 回 答: 是这个么？ 由 超级大懒猫 于 2010-12-08 16:12:44 |
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http://www.zojirushi.com/ourproducts/how_and_chart/comparison_pdf/Zojirushi%20Lunch%20Jar%20Chart.pdf
Vacuum Insulation: How does it keep food hot? The air between two thin layers of stainless steel that make up the outer container is removed to create a vacuum. Because there is no air, the temperature on the other side of the wall does not transfer over, keeping foods hot or cold for hours. |
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