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| dead reckoning | |||
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| dead reckoning | |||
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航位推算 : 19 phrases in 7 subjects |
| Aviation | 2 |
| Earth sciences | 1 |
| Electronics | 7 |
| General | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 2 |
| Technology | 5 |
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