The system realized diagnosis , knowledge acquisition, maintain management and learning assistant by friendly interface, which satisfied maintain personnel in different level.

本系统通过界面友好的人机交互实现故障诊断、知识获取、维修管理，辅助学习，符合各层次诊断维修人员的需求。

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Most requirements management tools maintain a history of each requirement, but they do not do versioning.

许多需求管理工具为每一个需求都保持了历史记录，但是并不能实现版本化。

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The configuration management specialists, who maintain the system configuration, apply corrections, enhancements and upgrades and introduce new elements if needed.

配置管理专家，他维护了系统配置，如有需要应用校正，改进并升级，以及引入新的元素。

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Maintain risk management controls and supervisory procedures under the direct and exclusive control of the broker-dealer with market access.

FORBES: No More Tolerance For Unlicensed Driving In The Markets

Mr Persson readily admits that recruiting around 2, 000 new employees a year is a strain on his ability to maintain the flat management structure so critical to controlling costs.

ECONOMIST: Hennes & Mauritz

In order to use the light at all times, Kindle Paperwhite requires exceptional power management to maintain the battery life that customers love about Kindle.

ENGADGET: Amazon announces $119 Kindle Paperwhite with illuminated, capacitive touch display