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| 助理工程师 | |||
| 轮助 | |||
| 轮助【船】; 助理轮机员; 副工程师 | |||
| assistant engineer: 6 phrases in 5 subjects |
| Bridge construction | 1 |
| Business | 1 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Technology | 1 |
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