降雨,是地球表面大气环流过程中的自然现象。屡面处在建筑物的顶部,起着遮挡风雨和维持房屋功能的关键作用。大约在八千到一万年前,北方有半潜地下式的圆形土墙草顶茅屋(如半坡村);在有薄片崧石的山脚下,出现了利用石片覆盖的、缓坡屋面的叠石墙简陋小屋;在亚热带地方,则利用当地的宽大树叶重叠起来做为屋面,遮阳防 Rainfall is a natural phenomenon in the atmospheric circulation on the surface of the Earth. Repeatedly on the top of the building, plays a key role in sheltering wind and rain and maintaining the function of the house. About 8,000 to 10,000 years ago, there were semi-submerged underground circular grass roof huts in the north (such as Banpo Village); at the foot of a thin rock, there were stone roofs covered with gentle slopes. Stacked stone wall shabby cabin; in the subtropical area, the use of the local wide leaves overlap as a roof, sun protection