The conflicting problem of flash point and lower explosive limit as a criterion of hazard is studied in this paper.
文章就闪点与爆炸下限作为危险性判据相抵触的问题进行了探讨。
You must use a respirator if the fuel-gas concentration in the work area is 5% more than the lower explosive limit (LEL).
如果工作区域的油气浓度比最低爆炸浓度高出5%，必须使用呼吸器。
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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