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| 切换电源 | |||
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| 开关电源 | |||
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switched power supply : 12 phrases in 7 subjects |
| Aviation | 2 |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| Information technology | 1 |
| Space | 1 |
| Steel production | 1 |
| Technology | 5 |
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