假如你有一台打印机以及各种原料,就可以打印出一份能吃的比萨饼。这并不是科幻电影中的情节,而是在美国SMRC科技公司实验室里已经发生的事实。这种打印机不是普通的打印机,它叫作3D打印机。普通打印机只能在纸上打印出图像,但是3D打印机却能打印出实物。首先,操作者在电脑里建立一个要打印的东西的模型,包括各个细节的所有数据,比如长、宽、高;然后,电脑把这个数字化的模型传输给3D If you have a printer and a variety of ingredients, you can print out a pizza that can be eaten. This is not a plot in a science fiction movie, but a fact that has taken place in the labs of the SMRC Technology Corps in the United States. This printer is not an ordinary printer, it is called a 3D printer. Ordinary printers can only print out images on paper, but 3D printers can print out real objects. First, the operator creates a model of something to be printed in the computer, including all the details of the details, such as length, width and height. The computer then transmits this digitized model to 3D