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| 道岔与信号机械集中连锁装置 | |||
| 机械集中联锁装置; 机械集中装置; 机械联锁; 机械集中〔装置〕 | |||
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механическая централизация : 9 phrases in 2 subjects |
| General | 7 |
| Technology | 2 |
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