hollow gravity dam
短語(yǔ)詞組
- hollow abdomen gravity dam 空腹壩斷面
- hollow arbor gravity dam 空心重力壩
- stone masonry hollow gravity dam 砌石空腹重力壩
- hollow arch -gravity dam 空腹重力拱壩
- stone masonry -hollow gravity dam 砌石空腹重力壩
- gravity hollow dam 空腹重力壩 返回 hollow gravity dam