深溪沟水电站导流泄洪洞HFC40/W6F50衬砌混凝土施工
심계구수전참도류설홍동HFC40/W6F50츤체혼응토시공
The Construction of the HFC40/W6F50 Lining Concrete of Diversion Spillway Tunnel of Shenxigou Hydropower Station