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51. | alternating current resistance box |
| 交流电阻箱 |
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52. | alternating-current demagnetizatio |
| 交流退磁 |
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53. | alternating-current generating set |
| 交流发电机组 |
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54. | alternating current tube |
| 交流电子管 |
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55. | Intercollegiate exchanges |
| 校际交流 |
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56. | alternating current electrical engineering |
| 交流电工学 |
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57. | single phase alternating current |
| 单相交流 |
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58. | alternating current tractio |
| 交流牵引 |
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59. | alternating current corona |
| 交流电晕 |
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60. | alternating electromagnet |
| 交流电磁铁 |
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