 |
| suspended matter: 13 phrases in 10 subjects |
| Chemical industry | 1 |
| Construction | 1 |
| Ecology | 4 |
| Energy industry | 1 |
| Environment | 1 |
| Foundry | 1 |
| Medical | 1 |
| Natural resourses and wildlife conservation | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |
|
| suspended matter: 13 phrases in 10 subjects |
| Chemical industry | 1 |
| Construction | 1 |
| Ecology | 4 |
| Energy industry | 1 |
| Environment | 1 |
| Foundry | 1 |
| Medical | 1 |
| Natural resourses and wildlife conservation | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 1 |