συσσώρευση : 64 phrases in 17 subjects |
Agriculture | 3 |
Communications | 1 |
Earth sciences | 5 |
Economy | 1 |
Electronics | 9 |
Energy industry | 2 |
Environment | 10 |
Finances | 2 |
General | 4 |
Industry | 2 |
Life sciences | 5 |
Materials science | 1 |
Medical | 3 |
Metallurgy | 2 |
Natural sciences | 8 |
Technology | 1 |
Transport | 5 |