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从安全性、装配率和作用可靠性三方面对两种电煤管进行了分析，并对B1电爆管进行了作用可靠性评估。结果表明，B1电爆管的安全性和装配率符合要求，作用可靠性大于99．85％（置信度r=0．95），高于B3电爆管。
The two kinds of coal pipes were analyzed from three aspects of safety, assembly rate and function reliability, and the reliability assessment of B1 electric explosion pipe was carried out. The results show that the safety and assembly rate of B1 electric explosion pipe meet the requirements, the reliability of the operation is greater than 99.85% (confidence r = 0.95), higher than B3 electric explosion pipe.