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in order to investigate the complex combustion process of me tai pat tides, a 25 kHz high-speed dig tai off-axis Ohio-graphic imaging system was built to study the tote-resolved threadiest visualization of typical phenomena of particles during Al/AP/HTTP propellant combustion. The typical combustion phenomena of AI pat tides in propellant combustion were analyzed by 3RD visualization, including the faking of particles on he combustion surface of propellant, the MicroVAX of pat tide clusters, and the existence of wake flame surface of burning pat tides. Time-resolved threadiest reconstruction of he observed aluminum pat tides is performed by highs affairs holography as we ii. The results show that affairs holography technique eliminates the interference of twin images and can obtain dear reconstructed images of pat tides. tbs in depend-en fly configured reference tight largely eliminates he influence of flame on bight propagation and effectively suppresses he Abe-ration caused by the sharp change of refractive index around the pat tides. The high-speed off-axis holography has strong precut-cavity and broad application prospers in the visualization and diagnosis of solid propellant combustion. [ABSTRACT FROM AUTHOR]