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preventer : 401 phrase in 43 subjects |
| Automated equipment | 3 |
| Automobiles | 1 |
| Caspian | 4 |
| Construction | 4 |
| Drilling | 18 |
| Ecology | 1 |
| Electronics | 2 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
| General | 8 |
| Geophysics | 2 |
| Karachaganak | 1 |
| Leather | 1 |
| Makarov | 4 |
| Mechanic engineering | 1 |
| Medical | 1 |
| Medical appliances | 1 |
| Metallurgy | 1 |
| Military | 1 |
| Mining | 3 |
| Nautical | 21 |
| Occupational health & safety | 2 |
| Oil / petroleum | 108 |
| Oil and gas | 40 |
| Oil and gas technology | 55 |
| Oilfields | 20 |
| Plumbing | 1 |
| Polymers | 2 |
| Production | 2 |
| Pulp and paper industry | 1 |
| Rail transport | 4 |
| Sakhalin | 24 |
| Sakhalin A | 2 |
| Sakhalin R | 3 |
| Sakhalin S | 2 |
| Shipbuilding | 4 |
| Soviet | 1 |
| Technology | 38 |
| Telecommunications | 1 |
| Textile industry | 4 |
| Transport | 2 |
| Well control | 4 |
| Yachting | 1 |