GB 50084-2017 第2.1.21条
| | **Operating area**: The maximum area protected by the system at the design spray density during a single fire. The design operating area for hotel buildings shall be determined in accordance with the code. |
| | **Operating area**: The maximum area protected by the system at the design spray density during a single fire. The design operating area for hotel buildings shall be determined in accordance with the code. |
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