step pith

This paper comprehansively introduced the anti-overlapping techniques and the use in ployester filament production,and the take-up technique of step-thread-pitch was described in the meantim

介绍涤纶长丝生产中卷绕防叠技术的种类及应用 ,着重阐述了步进螺距卷绕技术。

In this article,according to many years pedagogic experience,the author summarizes the ways on computation of working time and drawing of gradation plan calendar multi-story running construction with different paces.

介绍了多个施工层异步距异节拍流水施工的工期计算及进度计划表的绘制方法。