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| 分段〔区域〕开关 | |||
| 分段隔离开关 | |||
| 分段开关; 区域开关; 分段断路器 | |||
| section switch: 13 phrases in 5 subjects |
| Communications | 2 |
| Construction | 1 |
| Metallurgy | 2 |
| Rail transport | 1 |
| Technology | 7 |
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