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fine filter : 21 phrases in 13 subjects |
Armored vehicles | 1 |
Automobiles | 1 |
Chemistry | 2 |
Construction | 1 |
Ecology | 1 |
Electronics | 2 |
Energy industry | 2 |
General | 1 |
Natural resourses and wildlife conservation | 1 |
Oil / petroleum | 2 |
Polymers | 1 |
Technology | 5 |
Transport | 1 |