外脚手架的搭设与拆除大部分是在高处攀登和悬空作业,由于其不安全因素多,危险性大,作业中如果思想上不重视,技术上不采取有效措施,往往容易发生工伤事故。 Most of the erection and dismantling of external scaffolding are climbing and dangling work at a height. Because of its unsafe factors and high danger, if there is no ideological emphasis on operations and no technically effective measures are taken, accidents of work-related injuries are likely to occur.