The result can provide reference for technical application and theoretical analysis of the corundum-rubbleconcrete shelter.
研究成果可为刚玉块石混凝土遮弹层的工程应用和深入理论分析提供依据。
2
In Dujiangyan, a large mechanical digger scoops slabs of concrete and twisted metal rods from a massive pile of rubble.
在都江堰，一台大型挖掘机从一大堆碎石中铲出混凝土板和扭曲的金属杆。
3
His hands were covered in plaster dust as he stood beside the rubble, Shouting and weeping as he grabbed the exposed steel rebar of a broken concrete column.