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| 临界频率 (фоточувствительного прибора); 光敏仪表阈频率 (фоточувствительного прибора) | |||
| 极限频率; 临阈频率; 阈频临阈频率 | |||
| 阈频 | |||
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пороговая частота : 1 phrase in 1 subject |
| Medical | 1 |
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