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主要 设备 : 39 phrases in 15 subjects |
Aviation | 10 |
Business | 1 |
Economy | 4 |
Electronics | 2 |
Hydroelectric power stations | 2 |
Mechanics | 1 |
Metallurgy | 2 |
Nautical | 1 |
Nuclear and fusion power | 1 |
Project management | 1 |
Shipbuilding | 1 |
Space | 1 |
Technology | 9 |
Textile industry | 1 |
United Nations | 2 |