压缩率相同情况下，夹角对于底部接触宽度影响不大，但最大接触应力随着夹角的增大而减小；
The influence which the included angles on the contact width is not obvious under the same compression ratio, but the highest contact pressure decreases with the increase of the included angles.
随着安装过盈量的增大，油封唇口接触宽度不断增加，唇口最大接触压力先是有所增加，后逐渐趋于一定值。
Thirdly, along with the increase of the interference the width of the contact field on the air side become larger, but the max contact pressure increase first and then come to a constant value.
在没有失稳之前，油封唇口接触宽度随油封内腔压力有明显增大，而最大接触压力先是不断增大，后由于接触宽度增大的缘故，最大接触压力开始减小。
Before the break, the width of the contact field on the air side has a great increase, but the max contact pressure increase at first and then become smaller due to the increase of the contact width.
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