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| acoustic holography | |||
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声全息 : 45 phrases in 11 subjects |
| Aviation | 2 |
| Chemistry | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| General | 1 |
| Information technology | 3 |
| Metallurgy | 2 |
| Oil / petroleum | 4 |
| Shipbuilding | 1 |
| Space | 6 |
| Technology | 23 |
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