在同行业中处于前端位置。

In the same industry in a front-end position.

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组件使用portlet作为CAI (Composite Application Infrastructure，位置的组件运行时)业务组件的前端。

The component USES a portlet as a front end for a CAI (Composite Application Infrastructure, the component runtime for places) business component.

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根据有关实例，从矩阵切换台的选型，切换台位置的合理安排，阐述矩阵切换台在有线前端系统中的应用以及在安全、稳定播出中的重要地位。

Tells about the importance of matrix rectangular in the safety and stable broadcasting of the front system of CATV from the model choices of matrix rectangular and the arrangement of proper position.

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