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ventilation : 277 phrases in 31 subjects |
Agriculture | 31 |
Aviation | 1 |
Chemistry | 7 |
Coal | 2 |
Communications | 1 |
Construction | 19 |
Customs | 1 |
Earth sciences | 7 |
Economy | 10 |
Electronics | 10 |
Energy industry | 1 |
Environment | 1 |
Finances | 7 |
General | 14 |
Health care | 7 |
Industry | 9 |
Labor law | 3 |
Life sciences | 1 |
Marketing | 1 |
Materials science | 3 |
Mechanic engineering | 27 |
Medical | 25 |
Microsoft | 3 |
Mineral products | 1 |
Municipal planning | 30 |
Natural sciences | 3 |
Patents | 3 |
Politics | 5 |
Social science | 3 |
Technology | 1 |
Transport | 40 |