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展 开 式 : 102 phrases in 28 subjects |
| Advertising | 2 |
| Agriculture | 3 |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 4 |
| Business | 6 |
| Chemistry | 5 |
| China | 2 |
| Construction | 1 |
| Cryptography | 1 |
| Dancing | 1 |
| Earth sciences | 2 |
| Economics | 1 |
| Electronics | 3 |
| Engineering geology | 1 |
| General | 1 |
| Librarianship | 1 |
| Mathematics | 3 |
| Metallurgy | 2 |
| Mining | 1 |
| Oil / petroleum | 3 |
| Project management | 1 |
| Scientific | 3 |
| Space | 17 |
| Statistics | 6 |
| Technology | 27 |
| Textile industry | 1 |
| United States | 2 |
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