|
drop in pressure : 20 phrases in 12 subjects |
| Automobiles | 1 |
| Forestry | 1 |
| Mechanic engineering | 1 |
| Medical | 1 |
| Metallurgy | 2 |
| Mining | 2 |
| Non-destructive testing | 3 |
| Oil / petroleum | 1 |
| Oilfields | 3 |
| Rail transport | 3 |
| Seismology | 1 |
| Technology | 1 |
|
drop in pressure : 20 phrases in 12 subjects |
| Automobiles | 1 |
| Forestry | 1 |
| Mechanic engineering | 1 |
| Medical | 1 |
| Metallurgy | 2 |
| Mining | 2 |
| Non-destructive testing | 3 |
| Oil / petroleum | 1 |
| Oilfields | 3 |
| Rail transport | 3 |
| Seismology | 1 |
| Technology | 1 |