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指 数 论 : 21 phrases in 12 subjects |
| Business | 4 |
| Drilling | 1 |
| Economy | 3 |
| Finances | 3 |
| Mathematics | 2 |
| Metallurgy | 1 |
| Name of organization | 1 |
| Project management | 1 |
| Securities | 2 |
| Selective breeding | 1 |
| Space | 1 |
| Technology | 1 |
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