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| 基本绝缘电平; 基本绝缘水平; 绝缘基本冲击耐压水平 | |||
| 基本绝缘级 | |||
| 基本绝缘标准 | |||
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| 标准 冲击绝缘板面 | |||
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basic insulation level : 11 phrases in 6 subjects |
| Electric machinery | 3 |
| Electricity | 2 |
| Electronics | 1 |
| Geophysics | 2 |
| Hydroelectric power stations | 2 |
| Technology | 1 |
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