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| switch room; switching room | |||
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交换 室 : 20 phrases in 8 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Chemistry | 1 |
| Electronics | 5 |
| Rail transport | 2 |
| Refrigeration | 2 |
| Technology | 5 |
| Telecommunications | 3 |
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