本文根据炸药的作功原理和炮眼封泥的作用，通过事故案例，论述炮眼封泥质量在煤矿安全生产中的重要性。
The importance of it in safety production of coal mine was discussed through accident case, according to theory of blasting powder and function of stemming.
本文根据炸药的作功原理和炮眼封泥的作用，通过事故案例，论述炮眼封泥质量在煤矿安全生产中的重要性。
The importance of it in safety production of coal mine was discussed through accident case, according to theory of blasting powder and function of stemming.
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