推介培训咨询服务项目（共约16个大类，400个小类）的主目录及分目录，......。 Introduce the master directory and sub-directories of the projects to provide training consulting services to customers (about 16 categories and 400 subcategories).
简单介绍了为何要做以及如何做工伤预防能力提升培训咨询。A brief introduction to why and how to do injury prevention competency enhancement training consulting.
