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| 光交换 | |||
| 光开关; 光转换［交换］ | |||
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| 光交换 | |||
| 光交换机 | |||
| 光开关 | |||
| 光学开关 | |||
| 光转换［交换］ | |||
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| 光学开关 | |||
| optical switching: 78 phrases in 9 subjects |
| Aviation | 1 |
| Communications | 1 |
| Computer networks | 6 |
| Electronics | 36 |
| Information technology | 6 |
| Rail transport | 1 |
| Space | 2 |
| Technology | 17 |
| Telecommunications | 8 |
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