对称性 : 122 phrases in 20 subjects |
Aerodynamics | 1 |
Antennas and waveguides | 1 |
Automated equipment | 1 |
Biology | 2 |
Business | 1 |
Chemistry | 3 |
Electronics | 11 |
General | 28 |
Geology | 1 |
Information technology | 1 |
International Monetary Fund | 2 |
Mathematics | 11 |
Medical | 18 |
Military | 1 |
Nautical | 1 |
Oil and gas | 1 |
Oil processing plants | 3 |
Physics | 2 |
Technology | 31 |
Telecommunications | 2 |