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钢管混凝土由于承载力高，省料、省时、在国内已广泛使用．现对其工作机用进行探讨，以便更好地掌握和使用
Due to the high bearing capacity of concrete-filled steel tube, it has been widely used in the province, material, time, and in China. Now we discuss the working mechanism of the machine to better understand and use it