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| 机组变压器 | |||
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| 单元厂用变压器 | |||
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| 单元变压器 | |||
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unit transformers : 25 phrases in 7 subjects |
| Aviation | 5 |
| Drilling | 1 |
| Electric machinery | 3 |
| Electronics | 4 |
| Hydroelectric power stations | 5 |
| Space | 1 |
| Technology | 6 |
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