在地中海区域的早期文明中，拱形结构主要被运用在地下排水管上，但在地上建筑中首先发展并广泛使用拱门的是罗马人。
The arch was used by the early cultures of the Mediterranean area chiefly for underground drains, but it was the Romans who first developed and used the arch extensively in aboveground structures.
急流瘫痪了公用线路，冲破地下排水管道，弄翻陷入泥坑的汽车。
The rush of water downed utility lines, broke underground drainage pipes and flipped cars that remain Mired in mud.
本文通过工程实例，探讨了在进行城市地下排水管线探查的质量控制中需要注意的问题，以供参考。
This paper gives us a helpful solution by examples of the problems during quality control of inspection in city underground drainage pipeline.
采用一维非恒定流方程模拟地下排水管网内的水流，并给出泵站、闸门、淹没出流管道等排水系统的处理方法。
The flow in the drainage pipe network is simulated by one-dimensional unsteady flow theory, and the calculation of the pumping stations, the water gates and submersed pipes is indicated.
博尼斯推测，热带风暴“阿加莎”带来的强降雨，同时也加重了地下排水管道的负担，致使不断变大的地下洞穴最终塌陷。
Heavy rains from tropical storm Agatha may also have overloaded underground sewage or drainage pipes, leading to a growing cavity that eventually collapsed, Bonis speculated.
市政整体排水系统程序如下：路面雨水→雨水井→沉泥井→过街排水管→排水检查井→地下排水主干线。
The whole city drainage system program is as follows: rain water wells road, clay and drain well across the street and drainage inspection wells and underground drainage main lines.
市政整体排水系统程序如下：路面雨水→雨水井→沉泥井→过街排水管→排水检查井→地下排水主干线。
The whole city drainage system program is as follows: rain water wells road, clay and drain well across the street and drainage inspection wells and underground drainage main lines.
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