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| electric insulating board | |||
| electrical insulating board | |||
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电 绝缘板 : 12 phrases in 7 subjects |
| Chemistry | 2 |
| Electric machinery | 2 |
| Electronics | 2 |
| Nautical | 1 |
| Shipbuilding | 1 |
| Technology | 2 |
| Wood processing | 2 |
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