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1.The high density bag blaster is used to break through concrete walls.
高密度袋式爆破器用于穿透混凝土墙。
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2. The high density bag blaster was the first to use this technology in construction.
高密度袋式爆破器是第一个使用这种技术的建筑工程设备。
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3.The high density bag blaster was used to clear a path for the construction workers.
高密度袋式爆破器被用来为建筑工人开辟道路。