The essential globular inclusion in bearing steel smelted with white slag process in electric fur-nace are oxides of Al and Ca and small amount of Mg. 电炉白渣法冶炼的轴承钢中的点状夹杂主要是Al和Ca的氧化物,此外还有少量Mg的氧化物。
Histological study shows that the somatic embryo of grape experienced the same development process as zygotic embryo including globular, heart-shaped, torpedo-shaped and cotyledonary embryo, and the contents of grains and proteins changed dynamically in the process of somatic embryogenesis. 6. 组织化学研究表明体胚经历了与合子胚相似的发育阶段,即球形胚、心形胚、鱼雷胚和子叶胚,在发育过程中淀粉和蛋白质含量呈动态变化。
The globular austenite nuclei intensely formed at the high angle boundaries in V-Ti microalloyed steel during the reheating process, such as prior austenite grain boundary, ferrite grain boundary, ferrite/ martensite boundary and so on. V-Ti直接淬火钢在加热过程中,奥氏体主要集中于原始奥氏体晶界、铁素体晶界、铁素体/马氏体界面等大角度晶界处形核,且新形成的奥氏体晶粒基本呈球状。