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| 声频延迟线 | |||
| 声延迟线; 声音延迟线; 传声延迟线; 音带延线; 超声波延迟线 | |||
| акустическая линия задержки: 10 phrases in 3 subjects |
| Automated equipment | 2 |
| General | 6 |
| Technology | 2 |
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