 |
| fluid drive: 55 phrases in 14 subjects |
| Apollo-Soyuz | 1 |
| Automated equipment | 10 |
| Cement | 1 |
| Combustion gas turbines | 2 |
| Energy industry | 1 |
| Geology | 2 |
| Mechanics | 1 |
| Nautical | 1 |
| Oil / petroleum | 4 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Rail transport | 1 |
| Technology | 20 |
| Transport | 9 |