About Zhang Huiyu
About 哈爾浜市道里区防xun抗旱指揮部弁公室,黒竜江 哈爾浜,150000
About Heilongjiang Keji Xinxi
About quality
About impermeable wall
About infrastructure
About project
About hydraulic power generation
About dam
About 中国経済
About 建設プロジェクト
About Dams in general
About Hydroelectric power generation
About 水力発電
About プロジェクト
About ダム
About カバー層
About 遮水壁
About 施工
About ポイント