将直流电源设备配置在保护小室内，取消接入直流电源的长电缆。
To install DC supply equipment in relay building can cancel the long DC supply cables.
二氧化碳监测设备用于确保最小室内的新鲜空气，以此确保舒适性和最大的能效。
CO2 (carbon dioxide) monitoring devices are used to ensure minimum indoor fresh air to ensure comfort and maximum energy efficiency.
二氧化碳监测设备用于确保最小室内的新鲜空气，以此确保舒适性和最大的能效。
CO2 (carbon dioxide) monitoring devices are used to ensure minimum indoor fresh air to ensure comfort and maximum energy efficiency.
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