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| 开关装置 | |||
| 开关设备 | |||
| 开关电器 | |||
| 转辙装置 | |||
| 转换［开关］装置 | |||
| 开闭装置 | |||
| 转换装置 | |||
| switching device: 65 phrases in 14 subjects |
| Aviation | 2 |
| Business | 3 |
| Communications | 2 |
| Electronics | 34 |
| General | 1 |
| Geophysics | 1 |
| Information technology | 2 |
| Mining | 1 |
| Nautical | 1 |
| Rail transport | 2 |
| Shipbuilding | 4 |
| Space | 3 |
| Technology | 8 |
| Telecommunications | 1 |