 |
| corrosive attack: 9 phrases in 6 subjects |
| Ecology | 1 |
| General | 1 |
| Oil / petroleum | 1 |
| Quality control and standards | 1 |
| Technology | 4 |
| Transport | 1 |
|
| corrosive attack: 9 phrases in 6 subjects |
| Ecology | 1 |
| General | 1 |
| Oil / petroleum | 1 |
| Quality control and standards | 1 |
| Technology | 4 |
| Transport | 1 |