In this article, the seal failure of optical glass was analyzed, and the improving method was introduced.

介绍了吸收塔上视镜密封失效的原因分析及改进措施。

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Pressure the General Assembly to premature seal failure, and the contact pressure is too small will cause leakage.

压力过大会促使密封过早失效，而接触压力过小则会引起泄漏。

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At present, the problems of hydraulic cylinder is about serious internal leakage, seal failure, crawling and the short service life.

目前，回转窑所用的挡轮液压缸存在的问题是内泄大、密封失效、产生爬行及使用寿命低等。

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Most of the technical issues covered in the report, such as the failure of a crucial cement seal and the misinterpretation of a key pressure test, have been raised by other investigations.

WSJ: Gulf Disaster Tied to BP's Lack of 'Operating Discipline'