In view of a collapse accident of the roof-fram, the strength and the stability of a collapsed roof-fram is analysed in detail.
本文针对一起屋架坍塌事故，详尽分析了坍塌屋架的强度及稳定性。
The pillars gave way and a section of the roof collapsed.
这些立柱坍塌了，一部分屋顶坠落下来。
The roof collapsed under the weight of snow.
房顶在雪的重压下突然坍塌下来。
The roof collapsed, showering us with dust and debris.
屋顶塌了下来，灰尘、碎片纷纷落在我们身上。
As hundreds of tourists and Parisians stood and watched the flames leaping from the roof, there was shock and tears as the cathedral spire caught fire, burned, and then collapsed into itself.
数百名游客和巴黎人站在那里看着火焰从屋顶上跃起，当大教堂的塔尖着火，燃烧，然后倒塌时，人们震惊并流泪。
The roof collapsed under the weight of the snow.
屋顶被雪压塌了。
The roof of much of the building seems to have collapsed.
该大厦的大部分屋顶似乎已经坍塌。
Marks in the wall indicate wooden roof supports were used to create the tomb, but the wood long ago collapsed under the weight of the pyramid built above.
墙上的痕迹表明木屋顶被用来支承建坟墓，木材早已被金字塔重量作用下倒塌。
The roof of a market has collapsed and fruit and vegetables lie rotting on the floor.
一个市场的屋顶塌陷，水果，蔬菜散落一地。
The roof of the armory collapsed during the storm.
兵工厂的屋顶在风暴中已坍塌。
The roof of the old house collapsed.
这座旧房子的房顶坍了。
The rescuers used listening devices and dogs to triangulate her location. Then they cut a hole through the roof and, beneath that, the collapsed walls.
救援人员利用电子收听装置和救援犬确定她的方位，之后挖了个穿过房顶和下面坍塌的。
The volcano collapsed higher roof-lines and buried Pompeii under many meters of ash and pumice, and it was lost for nearly 1700 years before its accidental rediscovery in 1748.
火山使得城内建筑坍塌，并将庞培城掩埋于数米深的灰烬和轻石之下。这座古城消失了近1700年，于1748年偶然间被再度发现。
He lived in a dilapidated row house whose walls and roof had partly collapsed.
他住在破旧不堪、快要倒塌的排屋里，墙壁和屋顶已部分倾颓。
A few mud houses and collapsed walls jumped into our eyes. To be exact, her home was only enclosed with a few walls in the middle of the yard without roof.
映入眼帘的几间土房子，坍塌了的围墙，确切的说只有正中的一间，两边的就只有几面墙，没有屋顶。
The roof collapsed as they fought the blaze. The cause of the fire is under investigation.
消防队员在灭火的时候，屋顶发生了坍塌，火因目前还在调查中。2。
He was helping to demolish an underground garage when part of the roof collapsed.
他当时正在帮忙拆除一个地下汽车库，屋顶的一部份突然倒塌。
The roof had collapsed completely and was resting on the machinery in the interior.
屋顶全部倒塌压在屋内的机器上。
The weight of the snow collapsed the roof.
屋顶在积雪重压下塌陷。
On August 6th, the roof of the Crandall Canyon coal mine in Huntington, Utah, collapsed. Six miners are trapped.
八月六日，美国尤他州亨廷顿克兰德尔峡谷煤矿的顶部坍塌。六位矿工被困其中。
The weight of the snow collapsed the roof.
积雪的重压使屋顶塌陷。
The weight of the snow collapsed the roof.
隧道的顶部塌陷了。
The weight of the snow collapsed the roof.
隧道的顶部塌陷了。
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