There are particles on whole cross section of nozzle divergent section and this fact shows that there is no"no particles zone"in nozzle divergent section.
喷管扩张段整个截面上都有粒子分布，说明喷管扩张段中不存在“无粒子区”；
There are particles on whole cross section of nozzle divergent section and this fact shows that there is no"no particles zone"in nozzle divergent section.
喷管扩张段整个截面上都有粒子分布，说明喷管扩张段中不存在“无粒子区”；
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