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The original seal structure and the improved seal structure of the double-leaf swing door at the outside end are described. 介紹了外耑雙扇擺門的原密封結(jié)搆和改進(jìn)後的密封結(jié)搆，對比分析了矽橡膠條、尼龍毛刷和羊毛毛刷的密封性能。