 |
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| swabbing pig; pig (denghu); pipeline inspection gauge (denghu) | |||
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| pipeline scraper | |||
| go-devil | |||
| скребок для очистки трубопровода: 9 phrases in 7 subjects |
| General | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 3 |
| Rail transport | 1 |
| Sakhalin | 1 |
| Technology | 1 |