 |
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| 滤波滤光因数 | |||
| 滤光［片］系数 | |||
| 滤波系数 | |||
| 滤光因数; 滤波因数 | |||
| 渗透系数; 滤色镜系数; 过滤系数; 滤镜系数; 滤光系数; 滤光片倍数 | |||
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filter factor : 3 phrases in 3 subjects |
| Oil / petroleum | 1 |
| Piezoelectric crystals | 1 |
| Technology | 1 |
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