因而，不常更改的文件系统(例如可执行程序的目录)应以只读方式挂载，避免在系统崩溃后浪费时间来检查这样的系统。

Therefore, filesystems that seldom changed (such as a directory of executable programs) could be mounted read-only so as to not waste time for checking it after a system crash.

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比如说，他们想知道在什么时间检查引擎或者维修程序的隐形代码，但是他们不会有任何关键部分的信息。

"They'd know, for example, at what number of hours do the engines get checked, or the procedures for maintaining the stealth coding, " but "they wouldn't have information about key parts, " he said.

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我们建立一定的时间表、约束条件、检查点，和通信程序，但我们将细节留给第三方。

We establish certain timetables, constraints, checkpoints, and communication procedures; but we leave the details to the third party.

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