为西安肉夹馍正本清源——以饼夹肉食用法始于唐朝新论

尽管唐人发明以饼夹肉食用法带有一定的偶然性，甚至也存在着多种版本的分辨判断问题，但经史官、文人的刻意记载和广泛传播，主观上和客观上都具备了新食用法的流传条件，种种迹象表明，以饼夹肉之法是在唐代形成并且凝固成关中区域一种主副食结合的新方法，沿袭至今。

To Root the Origin of "Rouga Mo" in Xi'an:a New Theory of Pie Folding Meat as an Edible Method Began in Tang Dynasty

The pie folding meat, named ＂Rouga Mo＂ （like the hamburger）, as an edible method, was invented by Chinese in Tang Dynasty with certain contingencies, even there were multiple versions about its invention to be distinguished. But the invention, explicitly record and widely spread by the historian and literati, had the subjective and objective spreading conditions as a new edible method. There are in- dications that the pie folding meat formed and shaped as a new combination of staple and non - staple food in Guanzhong area of Tang Dynasty, and followed so far.