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| соединительная муфта | |||
| 连套管: 46 phrases in 10 subjects |
| Automobiles | 1 |
| Construction | 1 |
| Electronics | 9 |
| General | 9 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Oil processing plants | 3 |
| Pipelines | 1 |
| Sakhalin | 1 |
| Technology | 19 |
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