zhè ge / dàng'àn dài / lǐ / bǎocún zhe / xiàngmù / cóng / lìxiàng / dào / yànshōu / de / quánbù / wénjiàn这个档案袋里保存着项目从立项到验收的全部文件。This archive envelope contains all the documents from the project's approval to its final inspection.