我在埃塞俄比亚工作期间,发现当地居民大多使用简易屋顶贮水箱。埃塞俄比亚首都亚的斯亚贝巴的居民住宅一般为平房或二三层楼房。由于自来水的压力较低,几乎家家都在自己的屋顶上用特制铁架或在砖混结构上装设屋顶水箱,材质多为钢板,见图1。 During my time in Ethiopia, I found that most local residents used simple roof storage tanks. Residential buildings in Addis Ababa, the capital of Ethiopia, are usually bungalows or two-storey buildings. Due to the low pressure of tap water, almost every household in their own roof with a special iron frame or in the brick structure installed roof tank, mostly steel plate, shown in Figure 1.