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| 時鐘 | |||
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time : 21 phrases in 9 subjects |
| Automatic control | 1 |
| Computers | 2 |
| General | 8 |
| Microsoft | 1 |
| Obsolete / dated | 1 |
| Power system protection | 3 |
| Radiobiology | 1 |
| Satellite communications | 3 |
| Video recording | 1 |
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