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三关 : 89 phrases in 13 subjects |
Chinese | 2 |
Dialectal | 1 |
Drilling | 1 |
Electrical engineering | 3 |
Electronics | 7 |
General | 33 |
Household appliances | 1 |
Mathematics | 8 |
Medical | 5 |
Oil processing plants | 1 |
Rail transport | 1 |
Technology | 25 |
Telecommunications | 1 |