| 1. | The coffee grains plugged up the kitchen drain
咖啡渣堵塞了厨房的排水道。 |
| 2. | Vacuum drainage systems inside buildings
建筑物内真空排水道系统 |
| 3. | Blockage of sewers and drains
污水渠及排水道淤塞 |
| 4. | Fibre - cement pipes for sewers and drains - manholes and inspection chambers
下水管和排水道用纤维水泥管.人孔和检验井 |
| 5. | Main drainage channel
主要集水区排水道 |
| 6. | Ships and marine technology - graphical symbols for technical documentation - part 15 : drains
船舶和海上技术.技术文献的图形符号.第15部分:排水道 |
| 7. | Fibre - cement pipes for sewers and drains - pipes , joints and fittings for gravity systems
下水管和排水道用纤维水泥管.第1部分:重力管路系统用管道管连接件和管配件 |
| 8. | Devices to prevent pollution by backflow of potable water - automatic diverter - family h , type c ; german version en 14506 : 2005
防饮用水回流污染的装置.自动排水道. c型h系列 |
| 9. | Drains are cleared and depressions found on sites have been leveled to prevent holding of stagnant water
他们亦清理郊野公园内的排水道，并将场地内的一些凹陷地方填平，避免积水。 |
| 10. | Near the north wall 2 brick - made ditches were uncovered , beside them was a ceramic pipe , all of which was thought to be part of a sewerage system
近北墙处出现两条砖造沟槽状结构，一旁有陶管状物，可能属排水道系统。 |
