有两种面积缺陷,即孪生和晶粒间界.Two area defects are twins and grain boundaries.杂质常常在晶粒间界偏析.Impurities tend to segregate at grain boundaries.他们对最终组织 、 晶粒尺寸和合金性能都有较大的影响.They impinge on the final structure, grain size and properties of t...
Well - distributed rate is the key factor of briquette quality.原料混合均匀度是影响型煤质量的关键工艺因素.They maintain markets for securities already distributed, and act as finders in private placements of securities.维持已经发行股票的市场, 或为公司私募寻找买...