求翻译：1在施工现场必须设置明显的标牌,标明工程项目名称及建设、设计、监理、施工的单位名称、施工现场总负责人的姓名、开、竣工日期等。是什么意思？

1 at the construction site must set clear signs indicating the project name and company name for the building, design, supervision, construction, construction site such as name, date of opening and completion of the total charge.