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。

youdao

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。

youdao