有效 性 : 84 phrases in 26 subjects |
Automobiles | 1 |
Business | 5 |
Chemistry | 1 |
Climatology | 1 |
Computers | 1 |
Data processing | 1 |
Economy | 1 |
Education | 1 |
Electronics | 15 |
Environment | 1 |
General | 26 |
Geochemistry | 1 |
Hydroacoustics | 2 |
Information technology | 1 |
International Monetary Fund | 1 |
Law | 1 |
Mathematics | 9 |
Military | 1 |
Name of organization | 1 |
Nautical | 1 |
Oil processing plants | 2 |
Patents | 2 |
Robotics | 1 |
Statistics | 1 |
Technology | 5 |
Water resources | 1 |