 |
| 符 号: 2300 phrase in 76 subjects |
| Advertising | 19 |
| Agriculture | 53 |
| Air defense | 7 |
| Animal husbandry | 8 |
| Architecture | 10 |
| Artificial intelligence | 24 |
| Automated equipment | 1 |
| Automatic control | 1 |
| Automobiles | 43 |
| Aviation | 57 |
| Bridge card game | 3 |
| Bridge construction | 30 |
| Business | 55 |
| Cartography | 1 |
| Chemistry | 7 |
| China | 3 |
| Commerce | 8 |
| Communications | 3 |
| Compressors | 2 |
| Computer networks | 5 |
| Computer numerical control | 1 |
| Computers | 31 |
| Construction | 13 |
| Corporate governance | 1 |
| Cryptography | 8 |
| Desert science | 2 |
| Drilling | 4 |
| Earth sciences | 19 |
| Economy | 26 |
| Electric machinery | 10 |
| Electronics | 163 |
| Engineering geology | 4 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Finances | 7 |
| General | 177 |
| Genetics | 4 |
| Geography | 4 |
| Geology | 1 |
| Geophysics | 4 |
| Gymnastics | 1 |
| Hydroelectric power stations | 3 |
| Information technology | 139 |
| International trade | 9 |
| Labor organization | 1 |
| Laboratory equipment | 1 |
| Law | 1 |
| Librarianship | 7 |
| Linguistics | 1 |
| Management | 8 |
| Marketing | 3 |
| Mathematics | 29 |
| Metallurgy | 49 |
| Metrology | 4 |
| Microelectronics | 1 |
| Mining | 1 |
| Molecular genetics | 1 |
| Multimedia | 14 |
| Oil / petroleum | 48 |
| Plastics | 4 |
| Project management | 17 |
| Psychology | 1 |
| Rail transport | 2 |
| Refrigeration | 1 |
| Reproductive biology | 1 |
| Securities | 11 |
| Seismology | 1 |
| Shipbuilding | 11 |
| Skydiving | 1 |
| Space | 114 |
| Statistics | 1 |
| Technology | 823 |
| Telecommunications | 103 |
| Textile industry | 56 |
| Typography | 1 |
| Wind Energy | 5 |
| Work flow | 5 |