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| |||
| fixed hour | |||
| station time | |||
| constant time | |||
| set period | |||
| fixed time | |||
| set time | |||
| definite time | |||
| 固定时间: 30 phrases in 14 subjects |
| Aviation | 2 |
| Business | 4 |
| Corporate governance | 1 |
| Cryptography | 1 |
| Economy | 1 |
| Electronics | 2 |
| Environment | 1 |
| General | 2 |
| Geophysics | 1 |
| Information technology | 2 |
| Mining | 1 |
| Oil / petroleum | 2 |
| Space | 2 |
| Technology | 8 |
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