This machine would also be capable of making a glass-lined tunnel of 40 ft. in diameter or more.
这个机器也可以挖掘玻璃衬里的、直径为40英尺或更多的隧道。
How to assure the appearance and configuration of concrete lined tunnel is a key point, and also a difficult point for chamber construction.
如何保证隧洞形体和混凝土外观是洞室施工的一个重点，也是一个难点。
A small subway train carries me from the Hart Building, where my office is located, through an underground tunnel lined with the flags and seals of the fifty states.
一辆小小的地铁搭着我从雄鹿大厦的办公室所在地穿越排布着五十个州州旗和徽章的隧道而来。
The tunnel is lined with the method "single placement for the full cross using needle beam sliding form", which can save construction procedures while ensuring quality.
隧洞衬砌采用针梁滑模、全断面一次浇筑的方法施工，可以减少工序作业，保证施工质量。
The tunnel is lined with the method "single placement for the full cross using needle beam sliding form", which can save construction procedures while ensuring quality.
隧洞衬砌采用针梁滑模、全断面一次浇筑的方法施工，可以减少工序作业，保证施工质量。
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