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| 浸渍绝缘 | |||
| 整体浸渍绝缘 | |||
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| 整体浸渍纸绝缘; 整体浸渍绝缘 | |||
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mass -impregnated insulation : 2 phrases in 1 subject |
| Cables and cable production | 2 |
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