他表示，这次爆炸是由于聚集在蒸汽管道的氢气与氧气混合而引发的，而且未对核燃料容器造成任何损伤。
The explosion, he said, was due to hydrogen buildup in the steam piping that mixed with oxygen, and that there was no damage to the container with the nuclear fuel.
安装在外置燃料箱上的一台摄像机向世人展示了航天飞机爬升至太空的全过程，其间没有出现任何可能造成机体损伤的保温泡沫或其他剥离物的迹象。
A camera mounted on the shuttle's external tank provided dramatic views of the climb to space with no obvious signs of foam insulation or other debris that might have caused any damage.
衬砌混凝土的局部损伤特征受火灾发生时的火源、燃料供给、受火区段的地形、通风等因素的影响。
It is concluded that the damage features of the lining concrete are related to fire source, fuel supplying mode, landscape and ventilation condition of the conflagration.
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