紧凑法兰尺寸之所以减小，是由于减小了密封件的直径，这将会减小密封面的截面。
The reason why reducing the size of a compact flange, as a result of reduced diameter seals, which will reduce the sealing surface of the section.
紧凑法兰尺寸之所以减小，是由于减小了密封件的直径，这将会减小密封面的截面。
The reason why reducing the size of a compact flange, as a result of reduced diameter seals, which will reduce the sealing surface of the section.
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