| 1. | Specification for polyethylene pipe and fittings for roof drain systems
屋顶排水系统用聚乙烯管道和配件规范 |
| 2. | A flat roof has poor drainage
平的屋顶排水差 |
| 3. | Standard specification for polyethylene pipe and fittings for roof drain systems
屋顶排水系统用聚乙烯管和配件的标准规范 |
| 4. | Gravity drainage systems inside buildings - part 3 : roof drainage , layout and calculation ; german version en 12056 - 3 : 2000
建筑物重力排水系统.第3部分:屋顶排水布局和计算 |
| 5. | Specification for safety of household and similar electrical appliances - particular requirements - heated gullies for roof drainage
家用和类似用途电器的安全性.特殊要求.屋顶排水用加热集水槽沟 |
| 6. | Household and similar electrical appliances - safety - part 2 - 83 : particular requirements for heated gullies for roof drainage
家用和类似用途电器的安全.第2 - 83部分:屋顶排水用加热排水沟的特殊要求 |
| 7. | Household and similar electrical appliances - safety - part 2 - 83 : particular requirements for heated gullies for roof drainage
家用及类似用途电器.安全.第2 - 83部分:屋顶排水用加热集水沟的特殊要求 |
| 8. | Household and similar electrical appliances - safety - part 2 - 83 : particular requirements for heated gullies for roof drainage iec 60335 - 2 - 83 : 2001 ; german version en 60335 - 2 - 83 : 2002
家用和类似电器安全性.第2 - 83部分:屋顶排水用加热集 |
| 9. | Surface water supplies , problems and solutions ; the small farm dam how to construct one ; well drilling the von der rigg ; spring and groundwater protection ; urban water supply and sanitation ; water vending ; roof catchment systems
地表水供给的问题与解决方法；如何建造农场小蓄水池；凿井；泉水与地下水的保护；城市供水与卫生设备；水的销售；屋顶排水系统。 |
