回填混凝土 meaning in English
fill concrete
Examples
- There are two lining structure types which are frequently used in engineering presently , one is the reinforced concrete lining , another is the steel lining encircled by concrete
摘要目前工程上比较常用的水电站调压井衬砌结构型式有两种，一种结构型式是钢筋混凝土衬砌结构型式，另一种结构型式是钢衬加回填混凝土衬砌结构型式。