历史学家说,这是人类钻井史上的一座伟大丰碑;科学家说,这是中国古代的第五大发明;经济学家说,这是一块亟待开发、底蕴深厚的旅游金矿;它是盐都自贡的标志,千年盐文化的灵魂……序每一个城市都有自己特有的符号,如北京的八达岭长城,拉萨的布达拉宫,巴黎的艾菲尔铁塔,当这些符号出现时,我们便自然而然与这城市相勾连。反之,当提到这个城市时,代表这座城市的符号便油然而升于脑海。那么提到自贡这座城市,我们条 Historians say this is a great monument in the history of human drilling; scientists say it is the fifth-largest invention in ancient China; economists say it is an urgent need to develop and profound tourism gold; it is salt The symbol of Zigong, the soul of millennium salt culture ... Each city has its own unique symbols, such as the Great Wall of China Badaling in Beijing, the Potala Palace in Lhasa, the Eiffel Tower in Paris, when these symbols appear, we will Naturally connected with the city. On the contrary, when it comes to the city, the symbols that represent the city rise to mind. Then mentioned the city of Zigong, we article