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| 导管绝缘子; 穿越型绝缘子; 引入绝缘子; 引线绝缘子; 套管绝缘子; 穿墙绝缘子 | |||
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| 引入瓷瓶; 天线引入线绝缘子; 引入绝缘子 | |||
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вводной изолятор : 6 phrases in 2 subjects |
| General | 2 |
| Technology | 4 |
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