A competent person must determine the feasibility and safety, or where National Standards may dictate, of providing fall protection during the erection and dismantling of scaffolding.

  • 在脚手架安装和拆卸期间,胜任人员必须确定摔落保护的可行性和安全性(国家标准可能强制规定)。
目录 查词历史