2003年10月11日9时40分许 ,长春市南关区东广场西侧一建筑工地 ,一座近60m高的塔吊 ,在将一批钢管吊到17层楼高的地方时突然断裂 ,塔吊数十米长的横向钢臂和塔吊操作员工作室从50多m高空俯冲下来 ,砸到其旁边一所学校的教室。值得庆幸的是 ,当时在教室里上课的40余名师生正在课 On October 11, 2003, at 9:40 hrs, a construction site on the west side of the East Plaza of Nanguan District in Changchun City, a crane nearly 60m tall, suddenly broke when a batch of steel pipes were hoisted to a height of 17 stories. Dozens of meters of horizontal steel arm and tower crane operator’s studio subducted from more than 50 m altitude, hit the next to a school classroom. Fortunately, more than 40 teachers and students, who were attending classrooms at the time, were studying