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| 实验孔道 (отверстие); 实验孔口［通道］ | |||
| 实验孔道 (ядерного реактора); 实验管道 | |||
| экспериментальный канал: 5 phrases in 3 subjects |
| Electronics | 2 |
| General | 2 |
| Technology | 1 |
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