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| light amplifier; optical amplifier | |||
| image intensifier; optic amplifier; photoamplifier | |||
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| photoamplifier | |||
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光放大器 : 185 phrases in 14 subjects |
| Air defense | 2 |
| Automobiles | 1 |
| Aviation | 5 |
| Chemistry | 3 |
| Electronics | 84 |
| General | 2 |
| Information technology | 11 |
| Oil / petroleum | 1 |
| Physics | 2 |
| Radio | 1 |
| Shipbuilding | 1 |
| Space | 14 |
| Technology | 52 |
| Telecommunications | 6 |
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