1. 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。
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2. 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.
