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标准 标示 : 37 phrases in 12 subjects |
| Automobiles | 2 |
| Aviation | 4 |
| Bridge construction | 1 |
| Earth sciences | 3 |
| Electronics | 7 |
| General | 1 |
| Librarianship | 1 |
| Management | 1 |
| Nautical | 2 |
| Oil / petroleum | 3 |
| Space | 1 |
| Technology | 11 |
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