| |||
field | |||
drainage-tile | |||
tile drains | |||
tile culvert; tile drainage | |||
drain tile | |||
bleeder line of tile; clay sewer pipe; drainage tile; tile drain |
排水瓦管: 43 phrases in 7 subjects |
Agriculture | 5 |
Bridge construction | 1 |
General | 1 |
Hydraulics | 10 |
Hydroelectric power stations | 2 |
Technology | 22 |
Water resources | 2 |