循环法 : 173 phrases in 32 subjects |
Agriculture | 4 |
Air defense | 1 |
Automobiles | 2 |
Aviation | 1 |
Bridge card game | 1 |
Business | 5 |
Chemistry | 3 |
China | 1 |
Compressors | 1 |
Drilling | 6 |
Ecology | 6 |
Economy | 2 |
Electric machinery | 1 |
Electronics | 6 |
Engineering geology | 5 |
General | 3 |
Genetics | 1 |
Hydroelectric power stations | 1 |
Information technology | 3 |
International trade | 2 |
Metallurgy | 32 |
Nursing | 1 |
Oil / petroleum | 14 |
Rail transport | 1 |
Refrigeration | 1 |
Space | 3 |
Sports | 1 |
Swimming | 1 |
Technology | 58 |
Telecommunications | 4 |
Textile industry | 1 |
Water resources | 1 |