小时候看美国科幻片从空箱子里变出餐点都想像不到怎么做到的，现今居然已有这样的技术：3D干细胞列印机一层一层喷印出肉或菜后直接在同一个箱子内加热成熟食。真是太神奇了！
When I was a children I watched it conjured the meal from an empty box in the American science fiction movie, I could not imagine how to do it. Today unexpectedly there has been such technology: the 3D stem cells printer gushes out the meat or the vegetable one layer by one layer and then directly heats it to become cooked in the same box. Really amazing!
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