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| light-emitting component; luminous component | |||
| luminous element | |||
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发光 元 件 : 13 phrases in 6 subjects |
| Computer numerical control | 1 |
| Electronics | 3 |
| General | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Technology | 6 |
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