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face drilling rigs
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face drilling rigs
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〔地下穿孔设备〕
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face drilling rigs
平巷掘进凿岩台车
用于支承、推进和移动一台或多台凿岩机进行矿山水平巷道掘进凿岩钻孔,并能够自动行走的凿岩设备。也称地下掘进凿岩台车、平巷钻孔台车。
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emulsification in-liquid drying method
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emulsified-asphalt specialized for high-speed railway
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