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| teneur en soufre | |||
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sulphur content : 21 phrases in 12 subjects |
| Chemistry | 2 |
| Coal | 1 |
| Energy industry | 1 |
| Environment | 2 |
| General | 2 |
| Measuring instruments | 2 |
| Metallurgy | 3 |
| Natural resourses and wildlife conservation | 1 |
| Oil / petroleum | 1 |
| Politics | 1 |
| Statistics | 2 |
| Technology | 3 |