南水北调渠道衬砌过程控制要点--以邯石段元氏?标段为例
남수북조거도츤체과정공제요점--이함석단원씨?표단위례
Control Points of Channel Lining Process in the South-to-North Water Transfer Project- A Case Study on the Project in the First Bid Section at Yuanshi County from Handan to Shijiazhang