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| газовая смола; гудрон | |||
| каменноугольная смола | |||
| газовый дёготь; газовый гудрон | |||
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| гудрон; каменноугольная смола | |||
| gas tar: 38 phrases in 11 subjects |
| Automobiles | 2 |
| Cement | 1 |
| Construction | 2 |
| Drilling | 1 |
| General | 1 |
| Makarov | 2 |
| Oil / petroleum | 12 |
| Oil and gas | 3 |
| Road works | 1 |
| Technology | 12 |
| Thermal engineering | 1 |