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| 光学镀层 | |||
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| 光学涂［覆］层 | |||
| 光学镀膜; 光学镀层 | |||
| 光学涂层; 光学涂膜; 光纤被覆 | |||
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| 光学涂层; 光学镀膜; 光学镀层 | |||
| optical coatings: 28 phrases in 4 subjects |
| Chemistry | 1 |
| Electronics | 1 |
| Technology | 21 |
| Telecommunications | 5 |
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