| 1. | It is important for drainage work since checks can be made on its effectiveness before planting .
排水工作很重要，因为在栽植前就可对其效果加以控制。 |
| 2. | Tapered drilling method for drainage holes in crooscut
石门排放钻孔锥体施工方法 |
| 3. | Land resumption for drainage works in shui lau hang
水流坑收地进行排水改善工程 |
| 4. | Land resumption for drainage improvement works
政府收地进行排水系统改善工程 |
| 5. | Catheters for drainage use in the stomach and esophagus
胃和食管用引流导管 |
| 6. | Proposed works for drainage tunnel in tsuen wan
荃湾雨水排放隧道的拟建工程 |
| 7. | Regenerate plastics pipes for drainage in buildings
建筑排水用再生塑料管材 |
| 8. | Land resumption for drainage improvement works in tai po
大埔收地进行排水系统改善工程 |
| 9. | 2 , applicable for sewage system 3 , applicable for drainage
2适用于污水系统 |
| 10. | Land resumption for drainage improvement works in fanling
粉岭收地进行排水系统改善工程 |
