This paper consisit of three parts. The first part focuses on from the“security rivet”utility model patent infringement arising from two lawsuits and two cases from the request for invalidation.
本文共由三个部分组成：第一部分主要介绍了由“防伪铆钉”实用新型专利技术引起的两起侵权诉讼和两起无效宣告请求案件。
参考来源 - 关于“防伪铆钉”专利侵权案件的分析（研究生论文）Statistic data shows that 65% of bearing invalidation formats is induced by surface defects of steel balls.
实验统计表明:在轴承的失效形式中,由于钢球表面的缺陷而引起的裂纹、裂缝造成的轴承失效达65%。
参考来源 - 钢球表面缺陷机器视觉检测系统的研制·2,447,543篇论文数据，部分数据来源于NoteExpress
The copies of the data are determined to be fresh or stale based on the communication of invalidation messages.
系统将根据无效消息的通信确定数据副本是新鲜的还是陈旧的。
Invalidation methods rarely get called.
失效方法很少被调用。
This example shows invalidation based on the expire_page method.
这个事例所显示的到期失效基于expire_page方法。
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