When you no longer need the ability to roll back the broker, you can delete the broker's system database, unless it is still required for user data.
如果您不再需要回滚代理的功能，那么可以在系统数据库不储存用户数据时删除它。
He has meddled with good policies and failed to stop bad ones, such as the attempt to roll back the privatisation of the postal system.
他对好的政策乱动手脚，又废止不了糟糕的政策，例如，他曾试图阻止邮政体系的私有化。
If that doesn't work, you might try running Windows System Restore to roll back your OS to a time before the infection happened.
如果这也不行，你也许要试着运行操作系统的系统还原来将操作系统还原至机器被感染之前的时间。
Add a fixed roll based on the single back rest system, forming a double back rest system, then analysis.
并在此单后梁系统基础上，加设一固定后梁，组成双后梁系统，对其进行分析计算。
If you roll back the system date, cron will not run any scheduled jobs until the clock reaches the date that the system had before the date roll-back.
如果你将系统的日期返回时钟计时程序将不能运行任何的计划任务直到时钟达到日期返回以前的时间为止。
The sixth chapter is of micro-dimensional behavior analiysis of large-scale rolling mill back-up roll system and load characteristic of its oil film bearing.
第六章论述大型轧机支承辊辊系微尺度行为和油膜轴承承载特性。
The sixth chapter is of micro-dimensional behavior analiysis of large-scale rolling mill back-up roll system and load characteristic of its oil film bearing.
第六章论述大型轧机支承辊辊系微尺度行为和油膜轴承承载特性。
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