Their engineering arm, known as Ghorb, has been granted juicy slices of big state projects, including the building of gas pipelines and a new section of the Tehran metro.
他们控制的名为Ghorb的工程支臂也被授予了一些报酬颇丰的大型国家工程，其中包括了天然气管道的建设与一个新的德黑兰地下铁道的建设。
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。
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