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system change |
系统变换 : 30 phrases in 13 subjects |
Agriculture | 2 |
Air defense | 1 |
Artificial intelligence | 1 |
Aviation | 2 |
Computers | 1 |
Electronics | 5 |
Engineering geology | 1 |
General | 1 |
Geophysics | 2 |
Information technology | 3 |
Space | 4 |
Technology | 6 |
Telecommunications | 1 |