excavationn.挖掘;发掘;挖掘的洞;发掘物
excavation working face掘进工作面
excavation construction开挖施工
excavation and dredging土方干挖
excavation in soft clay软土基坑
excavation contour line开挖轮廓线
excavation face support掘进工作面支护
excavation of clay rock粘土岩开挖
excavation pit in water水上基坑
excavation of side slope边坡开挖
excavation with blasting爆破开挖