边界长度 meaning in English

edge length

When the rate is great , the length of border rose sharply , if it reached the critical value , the increase became slow
对于较大生长速率时,边界长度开始迅速上升,达到临界值后,仍然会有增加,但趋势变得较为平缓。
It was also found that the number of active atoms has relation with the length of border when the growth rate was low , and the number was largest as the length was shortest
并且发现,在低生长速率情况下,边界长度与可活动原子数间存在对应的周期性振荡关系。当边界长度最小时,可活动原子数为最大;反之,可活动原子数为最小。