Certificate revocation is always a hard problem in the research and application of public key infrastructure (PKI).

证书撤销一直是公钥基础设施(PK i)研究和应用中的一个难点问题。

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The application for revocation in practice normally associated with the registered trade mark with a stake in person.

实践中提出撤销申请的一般是与该注册商标具有利害关系的人。

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Then, through the study of the ways in which the obligee's right of revocation is exercised, its scope and its effect of application, this thesis presents some personal views.

然后，通过研究债权人撤销权行使的方式、效力和范围等问题，提出一定的个人见解。

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Other changes include that any pre-installed client app on something like a phone, computer, or TV will need Twitter's permission before it ships (sensing a trend here?), or potentially face revocation of its application key.

ENGADGET: Twitter's API v1.1 rules put user caps on third party clients, exert more control overall