例句 /

A new type of composite construction-concrete filled steel tube with construction formwork is formed by using the principle of process engineering of materials to optimize the factors of concrete.

A new type of composite construction-concrete filled steel tube with construction formwork is formed by using the principle of process engineering of materials to optimize the factors of concrete.

摘要运用材料过程工程学原理,对混凝土诸要素进行优化组合,形成了一种新型的钢管混凝土组合结构-建筑模网钢管混凝土结构。