本例中，现有提供者都不匹配服务规范提出的语义。
In this case, there is no existing provider that matches the semantics implied by the service specification.
在网格中要实现更加准确有效的服务发现、查询及其动态分配和替换，需要在语法匹配的基础上进一步实现语义匹配。
For better efficiency and accuracy, it needs semantic match between grid services to implement the service discovery, the service query, and the dynamic allocation and replacement of service.
其中，本体论服务器用于指导各分布协同群集间的语义匹配和通信，提供资源注册入口。
Ontology server guides the semantic match and communication among heterogeneous collaboration resource groups, and provides concepts as resource registry entries.
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