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试验得出了几种炸药在不同药卷直径下的性能结果，并采用锥形装药测定了炸药的熄爆直径。认为化学发泡乳化炸药的小药卷最适用于煤矿井下岩巷掘进的全断面爆破作业．
The experimental results obtained the performance of several explosives under different drug roll diameters, and measured the diameter of the explosives expelled by the conical charge. It is considered that the small coil of chemical foaming emulsion explosive is most suitable for full face blasting operation of rock tunneling in coal mine.