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| 电力启闭器; 电动执行机构 | |||
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| 门的电动启闭器 | |||
| 电气操作人员; 电气运行人员 | |||
| 电力启闭器; 电动执行机构 | |||
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electrical operator : 9 phrases in 4 subjects |
| Athletics | 1 |
| General | 1 |
| Shipbuilding | 1 |
| Technology | 6 |
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