| |||
catch water drain; catchwater-drain | |||
catch drain | |||
bind drain; French drain; infiltration ditch; rubble drain; stone-filled drain | |||
boulder ditch; dry-stone drain; filter drain; underdrain | |||
under drain | |||
blind ditch | |||
blind drain; catch-drain | |||
dry stone drain; gravel drain; mole drain; mound drain; sough; stone drain; culvert; covered conduit | |||
| |||
French drain | |||
| |||
stone filled drain | |||
| |||
French drain | |||
| |||
French drain |
盲沟 : 48 phrases in 7 subjects |
Architecture | 2 |
Bridge construction | 10 |
Construction | 1 |
Engineering geology | 4 |
Hydroelectric power stations | 3 |
Metallurgy | 2 |
Technology | 26 |