杂质常常在晶粒间界偏析.Impurities tend to segregate at grain boundaries.提出了避免碳化物带状偏析的有效措施.The effective measuresare presented bo avoid zonal segregation of carbide.高碳钢连铸坯存在的最大质量问题是中心缩松、中心偏析严重.Central shrinkage porosity and segregat...
In amphibole asbestos the constiuent atoms are arranged in chain - like conformation.在闪石类石棉中,组成的原子呈链状排列.Precise design of complete machine, compact conformation, handiness and simplicity.整机设计精致, 结构紧凑, 操作方便简洁.Like light m...
土著人以前总是用沉重的石头把这种金属锤打成箭头.The natives used to hammer the metal into arrowheads using heavy stones.来访者用拳头使劲地锤打着大门.The visitor hammered against the door with his fists.我们用铁锤锤打金属.We hammer metal with a hammer....
Of the 15 cases, 9 cases were undergone EST , 7 lithotomy, and another 9 ENBD.行EST9 例, 取石7例, ENBD9例.Conclusion: The modified lithotomy position may reduce the incidence of postoperative complications.结论: 改良摆放方法有利于减少截石位术后...