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| analysis matrix | |||
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分析 矩阵 : 18 phrases in 9 subjects |
| Architecture | 1 |
| Aviation | 2 |
| Bridge construction | 1 |
| Electronics | 2 |
| General | 1 |
| Metallurgy | 1 |
| Securities | 2 |
| Space | 2 |
| Technology | 6 |
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