décolorant: 43 phrases in 12 subjects |
Chemistry | 2 |
Construction | 1 |
Environment | 1 |
Food industry | 9 |
General | 9 |
Geology | 6 |
Metallurgy | 1 |
Natural resourses and wildlife conservation | 3 |
Oil and gas technology | 1 |
Photography | 2 |
Technology | 5 |
Textile industry | 3 |