Section water ring: prevent concentration in the peripheral Settings, seepage, to change the direction of flow, increasing permeability diameter, reduce the seepage.
截水环：防止集中渗流，在外围设置，以改变水流方向，增加渗径，减小渗流。
Based on different theories and techniques for the reduction of stress concentration, and on the basis of forms of breech ring fillets in general use, over a dozen of fillet forms are proposed.
根据降低应力集中的理论和技术措施，在现有常用的炮尾闩室圆角的基础上，提出了十几种圆角形式。
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.
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。
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