declives : 52 phrases in 18 subjects |
Agriculture | 4 |
Coal | 4 |
Earth sciences | 4 |
Education | 1 |
Electric traction | 1 |
Electronics | 6 |
Environment | 1 |
General | 2 |
Life sciences | 10 |
Mathematics | 3 |
Mechanic engineering | 2 |
Natural sciences | 1 |
Nuclear physics | 1 |
Rail transport | 1 |
Scientific | 1 |
Statistics | 3 |
Technology | 1 |
Transport | 6 |