工 作周期 : 63 phrases in 14 subjects |
Architecture | 1 |
Astronautics | 1 |
Automobiles | 1 |
Business | 1 |
Electric machinery | 10 |
Electronics | 10 |
General | 2 |
Hydroelectric power stations | 1 |
Information technology | 3 |
Management | 1 |
Metallurgy | 2 |
Oil / petroleum | 1 |
Space | 6 |
Technology | 23 |