“距的”的英语？

普通单排优化排样中冲裁步距的计算非常关键.It is critical calculating blanking step in normal single row optimum layout.文章介绍一种在普通冲床使用并能快速、准确改变步距的自动送料机构.In this paper an automatic feed mechanism with changing step is introduced.所以, 宽距的双矮星系统应该极...