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single tube : 45 phrases in 10 subjects |
| Agriculture | 1 |
| Automobiles | 4 |
| Chemistry | 1 |
| Electronics | 4 |
| Engineering geology | 4 |
| Metallurgy | 5 |
| Rail transport | 1 |
| Space | 1 |
| Surgery | 1 |
| Technology | 23 |
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