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optical variable
| attenuator
| optic variable | |
| tech. | 光学变星 |
| attenuator | |
| dril. | 封隔 |
| el. meas.inst. | 衰减器 |
| geophys. | 衰减 |
| life.sc. | 弱化子 |
| met. | 衰耗器 |
| oil | 减压器 |
| telecom. | 消光器 |
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| 光学变星 | |||
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| 光学变星 | |||
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optical variable attenuator : 20 phrases in 6 subjects |
| Aviation | 1 |
| Electronics | 6 |
| General | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Technology | 10 |
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