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| digital to analog | |||
| 数一模: 70 phrases in 15 subjects |
| Business | 6 |
| Earth sciences | 1 |
| Economy | 1 |
| Electronics | 2 |
| General | 2 |
| Geophysics | 16 |
| Mathematics | 3 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Project management | 2 |
| Securities | 3 |
| Space | 22 |
| Technology | 8 |
| Telecommunications | 1 |
| Wind Energy | 1 |
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