GB 50084-2017 第2.1.4条
| | **Wet system**: A closed system in which the piping is filled with pressurized water used to activate the system under normal standby conditions. Commonly used in hotel guest rooms, corridors, and similar areas. |
| | **Wet system**: A closed system in which the piping is filled with pressurized water used to activate the system under normal standby conditions. Commonly used in hotel guest rooms, corridors, and similar areas. |
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