So they move that way and they write that way , and the roundness is emphasized all the time .

所以，人们以这种方式运动和书写，“圆”也是一直以来人们所强调的。

Method of using roundness measuring instrument .

圆度测量仪的使用方法。

Paintballs are of good roundness and precious at shooting .

彩弹的圆度好、射击准确性高。

Keywords : cryogenic wild surface roughness roundness .

关键词：低温冷风,表面粗糙度,圆度。

Electrons , negatively-charged particles which orbit the nuclei , deviates from absolute roundness by less than less than 0.000000000000000000000000001cm .

带负电荷的微粒子电子，在绕核运行中，相对于一个纯粹的球形而言，其轨道偏离度远远小于0.000000000000000000000000001cm。