下水道和排水管老化不堪，超负荷运作。 电力、水利和下水道设施在洪水面前不堪一击。
Sewers and drains have become antiquated and overloaded, and power, water and sewage plants too susceptible to floods.
施工现场的道路、机具、材料、临时设施、供电线路、给排水管道等的布置和管理按承包商的规定进行。
All on-site roads, machines, materials, temporary facilities, power lines, water pipelines shall be laid out and managed according to CONTRACTOR requirements.
排水管道系统是城市基础设施的重要组成部分，它的完善程度影响着整个污水处理和水污染控制系统的运行状况和效率。
Drainage system is an important makeup of urban infrastructure, which affects remarkably the operation and efficiency of sewage disposal and control system of water pollution.
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