Its system consists of two silos filled with a pulverised rock such as gravel.
该系统由两个筒仓构成，每个筒仓装满磨碎的岩石，例如砂砾。
Therefore this system is a effective means for developing a hydraulic rock drill.
因此该系统是研制液压凿岩机的重要辅助手段。
Therefore this system is a effective means for developing a hydraulic rock drill.
因此该系统是研制液压凿岩机的重要辅助手段。
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