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| четырёхсекционный | |||
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four section : 17 phrases in 12 subjects |
| Construction | 2 |
| Electronics | 1 |
| Firefighting and fire-control systems | 1 |
| Food industry | 1 |
| Makarov | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Space | 3 |
| Technology | 3 |
| Telecommunications | 1 |