Kikai火山的标准火山爆炸性指数(VEI)为7。ve I分为1到8八个等级，而VEI 8则用来描述那种造成冰期和大规模灭绝的火山爆发。
Kikai weighed in at 7 on the standard volcanic explosivity index (VEI), which runs from 1 to 8, VEI 8 being reserved for the sort of mega-eruptions that cause ice ages and mass extinctions.
利用勒氏指数法和气象色谱仪对灾区的气体成分进行分析，判断火区内气体的可爆炸性。
The paper analyzed the gas contents with the index method and atmosphere chromatographic analyzer to judge the gas explosive in the fire area.
利用勒氏指数法和气象色谱仪对灾区的气体成分进行分析，判断火区内气体的可爆炸性。
The paper analyzed the gas contents with the index method and atmosphere chromatographic analyzer to judge the gas explosive in the fire area.
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