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| 电气设备维护和保养 | |||
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| 电气设备的技术维护 | |||
| 供电 | |||
| 电气设备维护和保养 | |||
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| 电器用途 | |||
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electrical service : 44 phrases in 11 subjects |
| Automobiles | 2 |
| Aviation | 4 |
| Earth sciences | 2 |
| Economy | 2 |
| Electric machinery | 6 |
| Electronics | 3 |
| General | 1 |
| Geophysics | 2 |
| Space | 1 |
| Technology | 20 |
| Wind Energy | 1 |
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