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Terms for subject Geophysics containing focal length | all forms | exact matches only | in specified order only
| English | Chinese |
| back focal length | 后聚焦距离 |
| effective focal length | 有效焦距 |
| focal length/diameter | 焦距/直径 |
| front focal-length | 前焦距 |
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| English | Chinese |
| back focal length | 后聚焦距离 |
| effective focal length | 有效焦距 |
| focal length/diameter | 焦距/直径 |
| front focal-length | 前焦距 |