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最近俄罗斯索兰公司研制出一种装有强制作用反铲铲斗的挖掘机，不需要预先松土就能在冻土上直接作业。 该铲斗悬挂安装在挖掘机把杆机臂上，替代了以前批量生产的普通铲斗。铲斗底部焊接有筒状外壳，外壳上安装有３个冲击部件，是具有特殊形状结构的气锤装置。外壳的前部安?
Recently, Russia’s Solan Company developed an excavator equipped with a forcible backhoe bucket that can be directly operated on frozen soil without prior loosening of the soil. The bucket suspension is mounted on the excavator lever arm, replacing the previously mass-produced common bucket. The bottom of the bucket is welded with a cylindrical shell and three impact parts are mounted on the shell. This is an air hammer device with a special shape structure. Enclosure front security?