GB 51251-2017 第2.1.6条
| **** | **Smoke curtain**: A facility made of non-combustible material, installed vertically below the building ceiling to block the spread of smoke. Required in hotel corridors, lobbies, and similar areas. |
| **** | **Smoke curtain**: A facility made of non-combustible material, installed vertically below the building ceiling to block the spread of smoke. Required in hotel corridors, lobbies, and similar areas. |
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