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射孔孔眼外砾石充填
meaning in English
outside perforation packing
Related Words
孔眼
打孔眼
销钉孔眼
穹顶孔眼
孔眼鱼钩
孔眼堵塞
方形孔眼
孔眼效应
换向孔眼
孔眼大小
射孔孔眼
射孔孔眼摩擦
射孔流动效率
射孔密度
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