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消弧圈 : 31 phrases in 10 subjects |
| Electric machinery | 3 |
| Electrical engineering | 1 |
| Electronics | 12 |
| General | 1 |
| Hydroelectric power stations | 4 |
| Metallurgy | 1 |
| Physics | 1 |
| Rail transport | 2 |
| Table tennis | 1 |
| Technology | 5 |
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