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| thorium | |||
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thorium : 84 phrases in 14 subjects |
| Chemistry | 29 |
| Earth sciences | 1 |
| Electronics | 1 |
| Energy industry | 1 |
| Environment | 2 |
| General | 2 |
| Measuring instruments | 1 |
| Medical | 2 |
| Metallurgy | 2 |
| Mining | 3 |
| Nuclear physics | 12 |
| Radiation | 26 |
| Technology | 1 |
| Textile industry | 1 |