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pipe-coupling : 41 phrases in 14 subjects |
| Automated equipment | 3 |
| Construction | 1 |
| Drilling | 3 |
| Logistics | 1 |
| Machinery and mechanisms | 2 |
| Mechanic engineering | 2 |
| Military | 2 |
| Oil / petroleum | 2 |
| Oil and gas technology | 4 |
| Oilfields | 1 |
| Pipelines | 2 |
| Rail transport | 4 |
| Space | 2 |
| Technology | 12 |