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| post telephone switchboard | |||
| telephone exchange | |||
| telephone exchanger; telephone switchboard; phone exchange room | |||
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电话交换 台 : 13 phrases in 6 subjects |
| Architecture | 1 |
| Aviation | 1 |
| Electronics | 6 |
| General | 1 |
| Shipbuilding | 1 |
| Technology | 3 |
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