 |
| weight dropping: 42 phrases in 15 subjects |
| Construction | 1 |
| Customs | 1 |
| Energy industry | 1 |
| General | 2 |
| Geophysics | 8 |
| Mechanic engineering | 1 |
| Metallurgy | 1 |
| Mining | 1 |
| Oil / petroleum | 8 |
| Oil and gas | 1 |
| Oil and gas technology | 2 |
| Quality control and standards | 3 |
| Seismology | 10 |
| Technology | 1 |
| Transport | 1 |