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| 半潜式平台 | |||
| 半潜式工作平台 | |||
| 半潜式钻井平台 | |||
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semi-submersible platform : 12 phrases in 4 subjects |
| Nautical | 2 |
| Navigation | 3 |
| Oil / petroleum | 2 |
| Technology | 5 |
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