基本解释：拱题砖,窑顶砖
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In the paper,the authors present a large coal fired bogie hearth type annealing furnace with the bay of 4 640 mm and the 90° bricked arch roof.大型燃煤台车式退火炉跨度为４ ６４０ ｍ ｍ ，采用９０°砖砌拱顶，炉门由电动机带动，通过按钮及限位开关控制炉门的开闭；采用多点检测仪显示炉温，圆图记录仪记录一点的温度。
Since the Mongolian Empire s conquest of Eurasia in the 13th century brought an unprecedented grand occasion for the cultural interflow between China and foreign countries along the Silk Roads, a sudden change in the evolution of Chinese brick and stone vaulted buildings took place.汉唐以来的我国砖石拱顶建筑在宋元之交发生了结构上质的变化,元明则是砖石拱顶建筑的发展高峰期,有关其成因及结构嬗变因素一直是中国建筑史上颇有争议的命题。
