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| photoelectric factor | |||
| photoelectric coefficient | |||
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光 电系数 : 20 phrases in 7 subjects |
| Electronics | 3 |
| General | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 3 |
| Space | 1 |
| Technology | 10 |
| Telecommunications | 1 |
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