移动式双臂树脂混砂器
mobile two-arm resin sand mixing unit
固定式双臂树脂砂混砂装置
stationary two-arm resin sand mixing unit
碗形树脂砂混砂机
spheroidal bowl resin sand mixer
C60机制砂混凝土
C60 concrete with machine-made sand
半自动混砂机
semi-automatic sand mixer
被砾石与地层砂混合物充填的射孔孔道
gravelsand filled perforation tunnel