center ring

It is emphasized that SEA is a central link to reach sustainable development which of guides us to implement SEA.

概述了战略环境影响评价的概念、发展由来,及可持续发展的内涵和指标体系,分析了两者之间的相互关系,强调了战略环境影响评价是达到可持续发展的中心环节,以及可持续发展对战略环境影响评价的指导作用。

Ideological and political work is also the central link thatwill enable to ally the Party and the peoples of all the country to fulfill the tasks set by the Party and the state.

思想政治工作是团结全党和全国各族人民实现党和国家各项任务的“中心环节”。

Based on the expansion revamping of direct spinning production line of staple fibers in the 1980' s, the spinning process was studied to promote the quality of precursor by high density multihole spinnerette and low damping center ring blowing quench technology.

在20世纪80年代直接纺短丝生产线进行增量改造的基础上,采用高密度多孔喷丝板和低阻尼中心环吹技术,为提高原丝质量而进行的纺丝工艺探讨,认为吹风风量和吹出距离对纺丝工程和原丝质量有明显影响。