According to the range of lower explosive concentration limit, methods for how to set up warning region were research.
通过分析氨气扩散后爆炸浓度下限范围，探讨了如何设置警戒区的方法。
According to the range of lower explosive concentration limit, methods for how to set up warning region were research.
通过分析氨气扩散后爆炸浓度下限范围，探讨了如何设置警戒区的方法。
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