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| 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 |
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