Concrete steps can be found in the relevant section of this chapter book.
具体操作步骤可以参见书中这一章的相关小节。
At present, the section types of concrete-filled steel tube included square shape and circular shape.
目前钢管混凝土结构的主要截面形式为方形和圆形。
Concrete structure with circular cross section, especially concrete column has wide application in engineering.
截面混凝土结构在工程中应用广泛，尤其以混凝土柱居多。
Concrete structure with circular cross section, especially concrete column has wide application in engineering.
圆形截面混凝土结构在工程中应用广泛，尤其以混凝土柱居多。
Concrete structure with circular cross section, especially concrete column has wide application in engineering.
圆形截面混凝土结构在工程中应用广泛，尤其以混凝土柱居多。
应用推荐