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| 上中; 上中心 | |||
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upper center : 13 phrases in 9 subjects |
| Automobiles | 1 |
| Aviation | 2 |
| Compressors | 1 |
| Economy | 1 |
| Electronics | 3 |
| Mechanics | 1 |
| Rail transport | 1 |
| Shipbuilding | 2 |
| Technology | 1 |
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