GB 51251-2017 第5.1.3条条
- Smoke exhaust system control for large spaces or corridors such as **guest room areas, banquet halls, and meeting rooms** strictly follows clauses 5.2.1~5.2.5.
- Smoke exhaust system control for large spaces or corridors such as **guest room areas, banquet halls, and meeting rooms** strictly follows clauses 5.2.1~5.2.5.
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