官厅水库输水泄洪洞改建工程闸门井土方开挖方案的确定及施工

官厅水库输水泄洪洞改建工程闸门井土方开挖方案的确定及施工的英文翻译

基本释义

• Determination and construction of gate well earth excavation scheme for Guanting Reservoir conveyance and discharge tunnel construction engineering