GB 51251-2017 第9.3.3条
- **** | Normally closed smoke exhaust valves (outlets) shall have a reset function and shall be able to open again after reset. In hotel buildings, smoke exhaust valves used for zone control need to have this function.
- **** | Normally closed smoke exhaust valves (outlets) shall have a reset function and shall be able to open again after reset. In hotel buildings, smoke exhaust valves used for zone control need to have this function.
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