您要查找的是不是：
- Within specified limits, the primary dendrite spacing will be extended and the macrostructure defect will be obviously decreased in continuous cast billet with the increase of silicon content. 指出在一定限度内，随硅含量增加，铸坯的一次晶间距加宽，各类低倍组织缺陷大大减少。
- primary dendrite spacing 一次枝晶间距
- Along with the increase of melt superheat time, the primary dendrite arm spacing decreases and the microstructure is refined. 随着熔体过热时间的延长，一次枝晶间距减小，组织越来越细密；
- Primary dendritic spacing 一次枝晶间距
- A higher superheat promoted coarse primary dendrites and wider PDAS. 过热度高，易形成粗大的一次枝晶，一次枝晶臂间距增宽；
- Keywords directional solidification;superheat treatment;primary dendrite arm spacing;melt structure;solidification microstructure; 定向凝固;过热处理;一次枝晶间距;熔体结构;凝固组织;
- The greater the secondary cooling water flow ratio, the easier the spindly primary dendrites and narrow PDAS formed. 二次冷却水流量比增加，易形成细长的一次枝晶，一次枝晶臂间距降低。
- Moreover, RE decreases the spheroidization velocity of the primary dendritic crystal and the coarsening velocity of globular grains obviously. 而且,稀土明显降低了初生树枝晶的球化速度和球形晶粒的长大速度,大大地延长了球形晶粒粗化的时间。
- The results showed that primary dendritic arms in the billets were becoming coarser and shorter with evolvement of solidification. 碳含量高,容易形成长宽比小的一次枝晶,并且一次枝晶臂间距增宽,容易形成粗大的柱状晶组织;
- primary dendrite arm spacing 一次枝晶间距
- A higher carbon content in the steel was favorable to form short and thick primary dendrites as well as wider primary dendritic arm spacings (PDAS) and coarsening columnar structure. 碳含量高，容易形成长宽比小的一次枝晶，并且一次枝晶臂间距增宽，容易形成粗大的柱状晶组织；
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- dendrite spacing 枝晶间距
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- Sure. We are friends since primary school. 当然，我们从小学就是朋友了。
- I started primary school when I was 5 years old. 我五岁时开始读小学。
- A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
- Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。
- Love and hatred are primary emotions. 爱和恨是基本的情感。
- secondary dendrite space 二次枝晶间距
