这个领域中的一种事实标准描述语言是WSDL，创建该语言的目的是给服务的接口和实现提供一个抽象层。

A DE facto standard description language in this domain is WSDL, which was created to provide an abstraction layer around a service's interface and implementation.

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为此，文中用面向对象的知识表示方法描述并建立本体，并以此为基础形成领域操作代数系统和智能体服务描述语言。

The paper describes and develops ontology by object-oriented knowledge representation, hence the representation leads to domain algebra system and agent service description language.

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而迄今为止，在测试领域，还没有统一的测试用例描述语言。

But up till now, there isn't unified test case description language.

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