The portlet service programming model is singleton-based, which means that there is no portlet entity specific instance of a portlet service.

Portlet服务编程模型是基于单一实例的，这意味着Portlet服务没有特定于Portlet实体的实例。

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The Model Service Programming Interface is used by portlets and portal applications to obtain read-only information about the portal infrastructure.

Portlet和门户应用程序使用模型服务编程接口获取关于门户基础结构的只读信息。

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SCA describes a complete service programming model, across a number of components that can all be described and accessed in the same way, namely as services.

SCA描述了一个完整的服务编程模型，涉及到大量可采用相同的方式描述和访问的组件(即服务)。

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The company exists to maximise the value of the BBC's assets for the benefit of the licence fee payer and invest in public service programming in return for rights.

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As an avid music listener I understood from the beginning that this is a satellite based programming service.

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The Conference recommended that governments provide tax and other economic incentives for the production of public service-type programming by the private media.

UNESCO: Education