局部坍塌 meaning in English

partial collapse

The dross - treatment factory building of baosteel is designed abroad , the idea and method in design is different from those of our country . because of the bad service conditions , a serious accident of cave - in collapse of local roof has happened , and an urgent repair has been carried out in a short time . these make the problems on the structural safety to be evident
宝钢渣处理厂房由国外设计，设计思想和方法与国内的存在一定的差别，而且由于使用条件恶劣，曾发生屋盖局部坍塌的严重事故，抢修时时间又过于紧张，使得渣处理厂房目前的安全问题突出。