The research of explosive shockwave can be significant for the weapon's damage efficiency evaluation, and also important for measuring the system security in mine explosive accidents.
爆炸空气冲击波的研究是弹药等武器作战效能评估的重要依据，也是对矿井爆炸事故的系统安全性进行分析的基础。
The results of research and tests conducted at Daye Iron Mine and Nanfen Iron Mine for many years show the superiorities of increasing explosive density, loading density and volume strength.
根据多年来在大冶铁矿和南芬铁矿等地试验研究的结果，说明了提高炸药密度、装药密度和体积威力的优越性。
The paper experimentally studied the explosive limit and the critical oxygen concentration of several kinds of gases that are found in the mine.
通过实验，对煤矿井下存在的多元混合气体的爆炸极限和临界氧浓度进行了分析和研究。
When mining coal in mine, danger of inflammable explosive damp exists all along, once damp explosion accident occur, normally, it can cause disastrous consequence.
在井下煤炭开采过程中，易燃易爆气体瓦斯危害始终存在，而瓦斯爆炸事故一旦发生，一般会造成灾难性的后果。
Submersible sewage pump in the air can contain explosive methane or coal dust in the safe use of the mine.
潜污电泵可以在空气中含有甲烷或爆炸性煤尘的矿井中安全使用。
Methane is an inflammable and explosive gas and a major constituent of mine atmospheres, natural gas and gas fuels.
甲烷是易燃易爆气体，是矿井瓦斯及天然气等多种气体燃料的主要成分。
GX-1Exploding isolation type drawing signal switch used for mining is applicable to coal mine where has explosive gas and coal dust.
GX-1矿用隔爆型拉引信号开关适用于具有煤尘和爆炸性气体的煤矿井下，作为低压开关防爆电铃或其它小型声响设备。
GX-1Exploding isolation type drawing signal switch used for mining is applicable to coal mine where has explosive gas and coal dust.
GX-1矿用隔爆型拉引信号开关适用于具有煤尘和爆炸性气体的煤矿井下，作为低压开关防爆电铃或其它小型声响设备。
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