extincteur : 63 phrases in 13 subjects |
Chemistry | 6 |
Commerce | 1 |
Communications | 1 |
Electricity generation | 1 |
Electronics | 2 |
Environment | 4 |
General | 3 |
Materials science | 20 |
Mechanic engineering | 4 |
Patents | 6 |
Textile industry | 1 |
Transport | 11 |
United Nations | 3 |