堤坝防渗心墙
dyke anti seepage core wall
库坝防渗
Infiltration-protection of dams of reservoirs
土坝防渗
earth dam seepage control
Earth dam arti-seepage
土石坝防渗
seepage control of earth-rock dam
防渗防冲
erosion control and seepage control
长江堤防
Yangtze River embankment
Yangtze dyke
Changjiang dike
dike of Yangtze River
The Yangtze River embankment
Changjiang embankment
Yangtze river dyke
dykes along the Yangtze river
Yangtze River dike
Yangtze River dikes
长江干流堤防
Yangtze river main stream