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加 锁 : 50 phrases in 13 subjects |
Automobiles | 8 |
Aviation | 2 |
Cryptography | 1 |
Electronics | 2 |
General | 1 |
Information technology | 11 |
Shipbuilding | 1 |
Space | 2 |
Technology | 12 |
Telecommunications | 2 |
Textile industry | 5 |
Water resources | 1 |
Wind Energy | 2 |