| 1. | It became necessary to provide drainage or sewer systems to carry such wastes away from the area .
提供排水系统或污水管道系统，把废物排出市区已成为必要。 |
| 2. | Drain and sewer systems outside buildings - index
建筑物外的污水和排放系统.索引 |
| 3. | Drain and sewer systems outside buildings - planning
室外建筑物的排水和污水系统.计划 |
| 4. | Drain and sewer systems outside buildings - rehabilitation
建筑物外的排水和污水系统.修复 |
| 5. | Application of graph theory in the sewer system plan optimization
图论在排水管网优化方面的应用 |
| 6. | Drain and sewer systems outside buildings . part 3 : planning
建筑物外部的排水和排污系统.第3部分:规划 |
| 7. | Deep tunnel intercepting sewer system
地下深层污水截流系统 |
| 8. | Drain and sewer systems outside buildings . part 5 : rehabilitation
建筑物外部排水排污系统.第5部分:恢复 |
| 9. | Drain and sewer systems outside buildings - pumping installations
室外建筑物的排水和污水系统.泵抽排装置 |
| 10. | Drain and sewer systems outside buildings - performance requirements
室外建筑物的排水和污水系统.性能要求 |
