New Technology of Groove-cutting Applied in Constructing Continues Thin Concrete Seepage-prevented Wall Underground in Built-in Works on the Main Levees of the Yangtze River是什么意思_New Technology of Groove-cutting Applied in Constructing Continues Thin Concrete Seepage-prevented Wall Underground in Built-in Works on the Main Levees of the Yangtze River在线翻译_英语_读音_用法_例句