冲唤截煤机 percussive coal cutter ; percussion cutting machine ; pick mining machine ; coal puncher 截煤机割齿 cutter bit ; cutter pick 电动截煤机 electri...
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... 截煤机割齿 cutter bit ; cutter pick 电动截煤机 electric coal cutter 冲击式截煤机 pick mining machine ; percussive coal cutter ...
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radial percussive coal cutter [矿业] 径向冲击式截煤机
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