The original file system must be unmounted before executing the roll back.

在执行回滚之前，必须卸载原始文件系统。

youdao

The system is flexible, allowing two different models to roll off the line in exactly the required numbers.

整个系统非常灵活，可以准确按各自需要的数量，同时装配两个不同的车型。

youdao

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。

youdao

But Ridding says the paper is working on a micropayments system which they expect to roll out as early as next year.

VOA: standard.2009.12.05

The government could also force the pension system to roll over the 10% of public debt held by the private funds on terms of its own choosing.

ECONOMIST: Argentina

The company which developed the system believe it may be possible to roll the system out to the US's 6, 000 hospitals within 60 days.

BBC: High-tech bioterror warning

Last year , at the Black Hat security conference in Las Vegas, computer scientist Andrei Costin discussed weaknesses he said he found in a new U.S. air-traffic security system set to roll out next year.

CNN: Hacker says phone app could hijack plane