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| 标准罗盘; 标准罗经 | |||
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standard compass : 16 phrases in 7 subjects |
| Aviation | 2 |
| Nautical | 1 |
| Navigation | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 2 |
| Space | 1 |
| Technology | 8 |
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