组合式密封装置是一种新型低摩擦力的密封装置，它既保持了“O”型密封圈的优点，又克服了“O”型密封圈的不足。

But built-up sealing device, a newly developed one has the advantage of the "o" type and gets rid of its disadvantage.

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斯特密封圈与Y型圈组合使用既可以相互补缺，又可以构成一理想的液压滤波器。

SIT sealing ring is used with Y ring together, both they can fit well each other and builds up an ideal hydraulic filter.

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结果显示：X形变截面密封圈的应力集中部位主要集中在组合面尖角处，特别是内尖角处更易损坏。

The results show that the stress concentration is in the pointed Angle of composed face of rubber sealing X-ring change section, mainly in inner pointed Angle that it is easy to break.

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