他们将使用这些信息来确定系统是否满足响应和可伸缩性标准，并且确定系统扩展的程度。
They will use this information to determine if the system meets the response and scalability criteria and determine how well the system scales.
现场总线的种种优点，如前期投入和维护的低成本，灵活的可扩展性，更多的管理信息，更高的产品一致性和灵活性等等，满足了用户需求。
Users want Fieldbus because it meets their needs in terms of lower cost of purchase and maintenance, scalability, more management information, higher product uniformity and production flexibility.
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