| 1. | Standard specification for asbestos - cement underdrain pipe 石棉水泥地下排水管的标准规范 |
| 2. | A special protection method for underground drainage pipeline 地下排水管道的特殊保护方法 |
| 3. | Standard specification for non - asbestos fiber - cement underdrain pipe 非石棉纤维水泥地下排水管的标准规范 |
| 4. | Regarding the safety of underground drainage facilities in hong kong , will the government inform this council 关于本港地下排水管道设施的安全事宜,政府可否告知本会: |
| 5. | En 588 - 1 fibre - cement pipes for sewers and drains . part 1 : pipes , joints and fittings for gravity systems 地下排水管道用纤维水泥管.第1部分:重力循环系统用管子接头和配件 |
| 6. | Pp . , plastics piping systems for non - pressure underground drainage and sewerage - polypropylene - specifications for pipes , fittings and the system 无压地下排水管和下水道用塑料管道系统.聚丙烯 |
| 7. | Plastics piping systems - piping systems for underground drainage and sewerage - test method for resistance to combined temperature cycling and external loading 塑料管道系统.无压地下排水管道系统.耐热循环和外部负载的试验方法 |
| 8. | Whether currently there is a mechanism for monitoring , on a regular basis , underground drainage facilities and assessing if there is leakage ; if so , of the details 现时有没有机制定期监测地下排水管道设施,并评估其渗漏情况如果有,详情是甚么 |
| 9. | As the underground drainage facilities are ageing gradually , whether the government has plans to replace or renovate the drains to prevent accidents caused by pipe leakage or burst , which endanger the safety of the public ; and 鉴于本港地下排水管道设施日渐老化,政府有没有计划更换或翻新该等管道,以预防因管道渗漏或爆裂而造成意外,危害市民安全及 |
| 10. | This research mainly is nonwoven using the hot blast , sap , and pvc pipe to complex the water absorbing composite pipe , when applies to the under - drainage tubing , but effectiveness achieves the water resources the application 摘要本研究主要是利用热风不织布及吸水性高分子棉网与聚氯乙烯管件复合而成的吸水性排水管件,应用于地下排水管材时,可有效率的达到水资源的应用。 |