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上海郊区和江苏一带农村中,农房的屋面多采用杉木檩条和小青瓦。对于木檩条的选用方法,民间有一种简便实用的计算方法,这种计算方法由于简便而且容易掌握,因此一直流传在木工师傅中。现把这种计算方法介绍如下。
In the rural areas of Shanghai and rural areas in Jiangsu, the roofs of farm houses are mostly made of Chinese fir and Xiaoqingwa. There is a simple and practical calculation method for the selection of wooden purlins. This calculation method has always been popular among woodworking masters because it is simple and easy to master. Now this calculation method is introduced as follows.