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作者随隧道考察团参观了美国各地隧道施工现场的模板和钢材的使用情况,与日本比大体上相同,只是在施工方法、对工程的不同选择等表面问题上,存在着不同。现简单说明如
The author visited the tunnel construction site in different parts of the United States with templates and steel use cases at the construction sites in the United States, much the same as in Japan, except that there were differences in surface construction methods and different options for the project. Now a simple description