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| звукоусиливающая аппаратура | |||
| установка громкоговорящего оповещения; голосник; громкоговорящая установка; звукофикация; система звукофикации | |||
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扩 音装置 : 3 phrases in 2 subjects |
| Cinema equipment | 1 |
| General | 2 |
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