 |
| |||
| пустотный пол (4uzhoj); фальшпол (4uzhoj) | |||
| hollow floor: 14 phrases in 6 subjects |
| Architecture | 1 |
| Construction | 8 |
| Makarov | 1 |
| Road works | 1 |
| Seismology | 1 |
| Technology | 2 |
|
| |||
| пустотный пол (4uzhoj); фальшпол (4uzhoj) | |||
| hollow floor: 14 phrases in 6 subjects |
| Architecture | 1 |
| Construction | 8 |
| Makarov | 1 |
| Road works | 1 |
| Seismology | 1 |
| Technology | 2 |