论述了“无烟灶台”并非无烟和对城市居住环境的污染, 根据一般住宅厨房砖砌排油烟道普遍存在的问题提出了预制排烟道的具体做法“,”The article expounds that smokeless top of cooker actually is not smokeless, and its pollution to the urban residential environment does exist. Due to the universal problem caused by brick flue in the kitchens of ordinary dwellings, The author presents a practical method concerning prefabricated flue.