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| 时标振荡器 | |||
| 定时生成程序 | |||
| 时标发生器 | |||
| 时标发生器振荡器 | |||
| 定时信号振荡器; 定时发生器 | |||
| 定时信号发生器 | |||
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| 定时信号发生器 | |||
| timing generator: 25 phrases in 8 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Electronics | 11 |
| Information technology | 3 |
| Metallurgy | 2 |
| Sports | 1 |
| Technology | 5 |
| Telecommunications | 1 |
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