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31. | medium frequencytransmitter |
| 中频发射机 |
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32. | intermediate frequency oscillator |
| 中频振荡器 |
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33. | low frequency medium frequency |
| 低频中频 |
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34. | middle frequency furnace |
| 中频电炉 |
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35. | I.F. sweep generator |
| 中频扫描发生器 |
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36. | medium frequency ammeter |
| 中频电流表 |
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37. | intermediate frequency attenuator |
| 中频衰减器 |
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38. | medium-frequency carrier |
| 中频载波 |
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39. | intermediate frequency power system |
| 中频电力系统 |
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40. | intermediate frequency generating set |
| 中频发电机组 |
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