Many factors affecting the particle size of the sub-micron ultrafine HMX prepared by technology of high-speed impinging streams were analysed. Through the prependicular experiment, the best technology elements were performed.%分析了影响高速撞击流技术制备亚微米级超细HMX粒度的各种因素，通过正交试验设计确定了最佳工艺条件。
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