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| 可变频率振荡器 | |||
| 可变振荡器 | |||
| 可变频率振荡器 | |||
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variable oscillator : 19 phrases in 11 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Earth sciences | 1 |
| Electronics | 5 |
| Information technology | 1 |
| Metallurgy | 1 |
| Multimedia | 1 |
| Oil / petroleum | 2 |
| Radio | 2 |
| Space | 2 |
| Technology | 1 |
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