这包括挖掘道路，铺设轨道，然后在顶部建造一个坚固的屋顶。
This included digging up the road, laying the track and then building a strong roof over the top.
掘进工艺包括主要作业和辅助作业，其中主要作业包括破岩、装岩、运输、支护，辅助作业包括通风、铺设轨道、挖掘排水沟、铺设管线等等。
The excavation technique consists of main operations including breaking, loading, haulage and support, and auxiliary work including ventilation, laying the track, digging ditches and laying pipes etc.
七英里的轨道被铺设来连接宾馆和高尔夫球场。
Seven miles of track were installed to link the hotel to the golf course.
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