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фильтрующая обсыпка (дренажа) |
drain fill: 30 phrases in 13 subjects |
Astronautics | 3 |
Aviation | 1 |
Construction | 4 |
General | 3 |
Makarov | 1 |
Metallurgy | 1 |
Military | 6 |
Nuclear and fusion power | 1 |
Oil / petroleum | 1 |
Oil and gas technology | 3 |
Programming | 1 |
Road works | 1 |
Technology | 4 |