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。
The safety performance, assemble rate and function reliability of squibs B1 and B3 are analysed. The function reliability of squib B1 is assessed.
该设备成本低、可靠性高，是塑料导爆管非电起爆系统生产中的新型设备。
The equipment is low cost and high reliability. It is a new equipment of the non-electric detonating system in the plastic detonating booster.
总结坝电防“四管”泄漏管理经验及防磨防爆小组的工作经验，对锅炉“四管”爆漏原因进行分析并提出预防措施。
Cause boiler "four tubes" the causes for the leakage of more, including wear and corrosion, overheating, ripping led is the main cause of four tube leakage.
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