The calculation result of finite element and formula method shows the stability of shell of blast furnace is enough.
有限元和公式法计算结果表明，高炉炉壳的稳定性足够。
2
The latter took up a large curved conch shell that lay on a shelf and without reference to anybody blew a shattering blast.
杰拉德抓起架子上的一只弯曲的大海螺壳，没跟任何人打招呼就吹出了振聋发聩的一声。
3
Conclusion: the shell fragments and blast waves are the main wounding factors during the explosion of powerful bombs and high speed shell fragments increase the wounding effects of blast waves.