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根据某自行火炮抽气装置结构与工作原理以及可燃药筒燃烧机理，得出抽气装置抽气可靠性差与半可燃药筒燃烧不完全是战斗室失火主要原因，给出了抽气装置抽气可靠性计算模型，并分析了影响抽气装置抽气可靠性诸因素，提出了该自行火炮抽气装置结构改进建议；分析了半可燃药筒燃烧不完全原因，提出了半可燃药筒制造与验收及使用注意事项．这对于自行火炮的设计与使用均有一定的参考价值．
According to the structure and working principle of a self-propelled gun extraction device and the combustion mechanism of the combustible cartridge, it is concluded that the poor reliability of the extraction device and the incomplete combustion of the semi-combustible cartridge are the main causes of the fire in the combat chamber. Reliability calculation model, and analyzed the factors that affect the reliability of the extraction device exhaust gas, put forward the improvement proposal of the self-propelled gun extraction device structure; analyzed the incomplete combustion of the semi-combustible cartridge cause, put forward the semi-combustible cartridge manufacturing and Acceptance and use of precautions. This is the design and use of self-propelled artillery have a certain reference value.