运行方式 : 63 phrases in 13 subjects |
Agriculture | 1 |
Construction | 1 |
Electric machinery | 4 |
Electronics | 23 |
General | 1 |
Hydroelectric power stations | 4 |
Information technology | 3 |
Mathematics | 1 |
Project management | 1 |
Space | 2 |
Sports | 3 |
Technology | 18 |
Telecommunications | 1 |