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BS 7827:2019 |  на печать | | Designing, specifying, maintaining and operating emergency sound systems for sports grounds, large public buildings, and venues. Code of Practice |
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| | Библиография | Обозначение | BS 7827:2019 | | Заглавие на английском языке | Designing, specifying, maintaining and operating emergency sound systems for sports grounds, large public buildings, and venues. Code of Practice | | Количество страниц оригинала | 74 | |
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