pipe : 301 phrase in 26 subjects |
Agriculture | 21 |
Cables and cable production | 4 |
Chemistry | 24 |
Coal | 14 |
Communications | 1 |
Construction | 19 |
Criminal law | 1 |
Earth sciences | 15 |
Electronics | 2 |
Energy industry | 1 |
Environment | 8 |
Forestry | 3 |
General | 1 |
Hobbies and pastimes | 1 |
Industry | 11 |
Life sciences | 5 |
Materials science | 1 |
Mechanic engineering | 84 |
Metallurgy | 11 |
Microsoft | 3 |
Municipal planning | 2 |
Natural sciences | 6 |
Nuclear physics | 1 |
Patents | 4 |
Technology | 2 |
Transport | 56 |