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程序时序控制 : 25 phrases in 10 subjects |
| Automatic control | 1 |
| Aviation | 1 |
| Electronics | 2 |
| General | 2 |
| Information technology | 2 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| Technology | 12 |
| Telecommunications | 1 |
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