Utilization ration of raw material is higher, and waste mater...

原料利用率高，废弃物排放量小。

youdao

This paper introduces the structural design, raw mater ial selection, manufacturing process, property test and quality control method for contact rail protective cover board for Tehran Metro project.

本文介绍了地铁接触轨防护罩的结构设计、原材料选择、制造工艺、性能检测、质量控制等。

youdao

This paper introduces the structural design, raw mater ial selection, manufacturing process, property test and quality control method for contact rail protective cover board for Tehran Metro project.

本文介绍了地铁接触轨防护罩的结构设计、原材料选择、制造工艺、性能检测、质量控制等。

youdao