文中对一种矿山新型的导爆管反射四通闭合起爆网路系统进行了可靠性试验、分析和现场应用，效果良好。
A new type of close blasting network system of Nonel tube with four-path reflecting unit as a connector has been developed and its application in mining is realized.
介绍了导爆管复式交叉起爆网路可靠性的计算与分析。
The calculation and the analysis of reliability which dupication crossover initiation network of Nonel are introduced.
通过计算设计了合理的炸高和爆破参数，根据周围环境条件选用了导爆索和导爆管联合起爆网路，爆破拆除达到预想的效果。
The reasonable blasting height, blasting parameters, and united initiation network of fuse and non-electric were designed in the demolition so as to reach an ideal blasting effect.
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