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| système chimique | |||
| chemical system: 32 phrases in 13 subjects |
| Chemistry | 9 |
| Criminal law | 1 |
| Earth sciences | 1 |
| Electronics | 2 |
| Environment | 1 |
| General | 4 |
| Health care | 2 |
| Law | 2 |
| Life sciences | 1 |
| Natural resourses and wildlife conservation | 1 |
| Natural sciences | 2 |
| Transport | 2 |
| United Nations | 4 |