 |
| exhaust filter: 15 phrases in 7 subjects |
| Automobiles | 4 |
| Construction | 1 |
| Electronics | 2 |
| Energy industry | 3 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 3 |
| Transport | 1 |
|
| exhaust filter: 15 phrases in 7 subjects |
| Automobiles | 4 |
| Construction | 1 |
| Electronics | 2 |
| Energy industry | 3 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 3 |
| Transport | 1 |