MDM systems are used to provide a complete view of a master data object without persisting all of the information within the MDM system itself.

使用MDM系统提供主数据对象的完整视图，但是不需要把所有信息都保存在MDM系统本身中。

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Stealth technology is even more difficult to master because it relies on systems to hide the presence of the plane while equipping the pilot with enough information to attack an enemy.

隐形科技相比之下更难完全掌握，因其关键系统要可以在装载能获得足够信息的飞行员去攻击敌人时保证不暴露目标。

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Zhang holds a master of science in management information systems and a graduate minor in business administration from the University of Nebraska at Omaha in Omaha, Neb.

张凌云先生在美国内布拉斯加大学奥马哈分校获得信息管理硕士及工商管理硕士辅修学位。

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