在欧美国家，即使像肯德基、麦当劳之类的时尚快餐也离不开面包、土豆条和奶酪这几道主菜。千百年来，烤面包、炸土豆条、制作干酪的技术并未见得有太大发展，实在是因为这种手艺的技术含量太低，或者说不值得为它们操太大的心。而在高科技时代，则有一些心有旁骛的科学家不甘 In Europe and the United States, even stylish fast food like KFC, McDonald’s can not do without the bread, potatoes and cheese. For centuries, the technology of baking bread, potato chips and making cheese has not seen much development. The reason is that the technical content of this craft is too low, or it is not worth the effort for them. In the high-tech era, however, there are some unwilling scientists