Grasp the general knowledge of maintaining the anti-chemical suit and the working priciple of forcible equiblast and air-compressed equipment.

掌防化服保养常识，掌送和空气压缩装置的工作原理及维修常识。

For blower fan coil,adopting local drop ceiling when they are setting with new wind,but adopting a manner of katabatic wind when they arn’t setting with new wind.

对于机盘管，加新的部局部吊顶，不加新的部下送的方式。

A displacement ventilation system was provided, it can form the "air layer" at the bottom of room so that resistance dewiness air meet directly the cold floor surface.

本文房间下部送的方式，使之形成地面“空气湖”，阻隔潮湿空气与室内地板表面的直接接触。