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| back view | |||
| 背视: 28 phrases in 12 subjects |
| Advertising | 1 |
| Architecture | 2 |
| Aviation | 2 |
| Bridge construction | 3 |
| Electronics | 2 |
| General | 2 |
| Mechanics | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 9 |
| Telecommunications | 2 |
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