Global ontology is as a unified view of local ontology, describing all datum in specific domain that can be integrated in middleware.
全局本体作为局部本体的统一视图，描述中间件在特定领域范围内可集成的所有数据。
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To process datum real time, the interface between computer and high-speed data acquisition system is a challenge. The PCI local Bus is superior in fast transmission and better compatibility.