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| 焦点合せ (shōten-awase); 集束 (shūsoku) | |||
| 収れん (shūren); 周速度 (shūsokudo) | |||
| фокусировка: 20 phrases in 5 subjects |
| Electronics | 2 |
| General | 1 |
| Physics | 12 |
| Technology | 4 |
| Television | 1 |
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