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六二五研究所过去对整体油箱大多采用“混合密封法”进行密封,即在铆缝内夹胶后铆接,再表面涂刷几层表面密封胶的办法。其
In the past, the research institute of the 6th Five-Year-Plan adopted the “hybrid sealing method” to seal the whole fuel tank, that is, riveting the rubber in the riveting seam and then brushing several layers of surface sealant on the surface. its