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unit of rate : 21 phrases in 11 subjects |
| Agriculture | 2 |
| Aviation | 2 |
| Business | 2 |
| Economy | 6 |
| Engineering geology | 1 |
| Finances | 1 |
| International trade | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Refrigeration | 3 |
| Technology | 1 |
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