It is thought that Electrophonic sounds may be induced in events of bolide, very bright auroral display, nearby strong lightning, earthquake and nuclear explosion.
据报道，大的流星火球、非常明亮的北极光、附近的强闪电、地震以及核爆炸等，都可能产生电声响。
The reason for cave shorage explosion caused by lightning is the sparks brought about by the electric current that comes into the cave along oil and gas pipe-lines.
结合现场分析了雷击爆炸的原因是雷电流沿油气管线进洞，在洞内放电跳火。
Fire and explosion easily happen in petrochemical enterprises without effective lightning proof measures.
石化企业如果没有有效的防雷措施，很容易发生着火爆炸事故。
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