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dust- control : 36 phrases in 14 subjects |
Cement | 1 |
Construction | 1 |
Ecology | 2 |
Energy industry | 2 |
Forestry | 2 |
General | 4 |
Makarov | 1 |
Metallurgy | 2 |
Military | 3 |
Natural resourses and wildlife conservation | 7 |
Occupational health & safety | 3 |
Public utilities | 2 |
Technology | 5 |
Thermal engineering | 1 |