Design of the multi - purposes Silt Cleaning Equipment of Spraying, Dragging and Digging for the Silt cleaning and the Shore Protection in the Tidy River Outlet Down the Sluice是什么意思_Design of the multi - purposes Silt Cleaning Equipment of Spraying, Dragging and Digging for the Silt cleaning and the Shore Protection in the Tidy River Outlet Down the Sluice在线翻译_英语_读音_用法_例句