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| adaptor; adapter; change-over; crossover; crossover coupling; crossover sub; mating connection; sub adapter | |||
| 配合接头: 14 phrases in 5 subjects |
| Drilling | 6 |
| Metallurgy | 2 |
| Nautical | 2 |
| Oil / petroleum | 3 |
| Shipbuilding | 1 |
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