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| синтетический каучук, воспроизводящий натуральный; синтетический полиизопрен | |||
| natural synthetic: 12 phrases in 11 subjects |
| Astronautics | 1 |
| Caspian | 1 |
| Ecology | 1 |
| Energy industry | 2 |
| General | 1 |
| Mass media | 1 |
| Oil and gas technology | 1 |
| Sakhalin | 1 |
| Technology | 1 |
| Telecommunications | 1 |
| Winemaking | 1 |