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| 剖面记录器; 地表不平度记录仪 | |||
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profile recorder : 21 phrases in 9 subjects |
| Aviation | 3 |
| Earth sciences | 2 |
| Electronics | 3 |
| Geology | 1 |
| Geophysics | 1 |
| Navigation | 1 |
| Oil / petroleum | 2 |
| Space | 2 |
| Technology | 6 |
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