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Underdrain
| Глоссарий по архитектуре и конструкциям |
A drain, installed in porous fill, for drawing off surface water or water from the soil, as under the slab of a structure.
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Leaching basin, английский
A drainage pit with sand and gravel sides constructed to allow water to dissipate.
Blind drain, английский
A drain which is not connected to a sewage system.
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