submergible roller dam 过水滚坝

Roller Compacted Concrete Dam 碾压混凝土坝

roller dam 碾压坝 ; 滚柱坝

submergible roller dam WESTBANK 过水滚坝

roller compacted dam 碾压混凝土坝

Roller-compacted earth dam 辗实土坝

high roller compacted gravity dam 高碾压混凝土坝

roller compacted concrete dam rcc 碾压混凝土坝

high roller compacted concrete dam 高碾压混凝土坝

RCCD roller compacted concrete dam 碾压混凝土坝