常见例句There should be no crackle, pore, sand and coldshut defect. 4铸件不得有裂纹、气孔、夹砂、冷隔等有害缺陷。Analysis and Countermeasure of Coldshut of Frog Flangeway of High Manganese Steel 高锰钢辙叉轮缘槽冷隔分析与对策 返回 coldshut