The main methods of building railway tunnels are mining method, shield method, immersed method and cutting and covering method, most of which are expatiated in aforementioned passages.
修建铁路隧道的主要方法有矿山法、盾构法、沉管法以及明挖法,这大多在前面都有阐述。
The main methods of building railway tunnels are mining method, shield method, immersed method and cutting and covering method, most of which are expatiated in aforementioned passages.
修建铁路隧道的主要方法有矿山法、盾构法、沉管法以及明挖法,这大多在前面都有阐述。
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