A service architecture needs to be defined at three levels.

一个服务架构需要在3个级别定义。

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All interface qualifiers can be applied at three levels of a component.

所有接口限定符都可以应用于组件的三个级别。

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But, you can help make your job easier by the use of common workspaces at three levels: personal, department and corporate.

不过，通过使用三个级别的通用工作空间(个人、部门和公司)可以简化这项工作。

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Ted Bloomberg, who heads up education for TD Ameritrade, thinks about investor education at three levels: providing basic information (what is a stock, what is a bond type stuff), followed by further engagement with tutorials and ultimately in-depth training with coaches or teachers.

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"We are coordinating at the three levels of governments and security with the presidential guard, " Martinez said.

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But Oracle is the only company in the entire tech industry that offers services at all three levels: applications, infrastructure, and platform.

FORBES: Oracle Disrupts Cloud Industry with End-to-End Approach