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| 电气集中联锁 | |||
| 电气集中联锁 | |||
| 电气集中联锁; 电力锁紧 | |||
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electric interlocking : 27 phrases in 5 subjects |
| Communications | 7 |
| Electronics | 1 |
| Metallurgy | 1 |
| Rail transport | 1 |
| Technology | 17 |
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