Officials say the girders crashed saturday evening in the port city of chittagong .
政府官员称这座大梁位于港口城市吉大港,在星期六晚间垮塌。
The dome is a unique construction that supports itself without girders or columns .
穹顶的构造很独特,不用大梁或圆柱,仅靠自身支撑。
Australia sells the iron ore that makes the steel that makes the girders that buttress china 's buildings .
澳大利亚向中国出售铁矿石,而铁矿石制造的钢材制成的大梁支撑了中国的建筑。
By running cables from deadman to deadman and tightening them , workers will be able to restore the girders to their original alignment .
通过从一个锚墩到另一个锚墩使用锚链并使它们绷紧,工人们将能使那些大梁恢复到原来的直线位置。
Meanwhile , authorities say the girders of an overpass that was under construction in southeastern bangladesh have collapsed , killing at least 11 people .