The paper analyzed the main electric equipment of HVAC (Heating, Ventilation and AirConditioning) apparatus and introduced structural principle of the auxiliary power system for EMUs.
分析了动车组空调装置的主要用电设备，并对辅助供电系统的结构原理进行了介绍。
2
An intense field dielectric air filtration system includes a perimeter frame for wall or ceiling mounting at the inlet of a return air duct for an airconditioningapparatus.
一种强场电介质空气过滤系统包括安装在空调装置的回风管的入口处的用于壁或天花板的周界框架。
3
All water defector products are tested through national airconditioningapparatus testing center.