In data customization aspect, there are also various degrees of flexibility for a multi-tenant application that ranges from complex schema customization to simple field extension.

在数据定制方面，多租户应用程序也有多种选择，从复杂的模式定制到简单的字段扩展，这些方法的灵活性各不相同。

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To avoid interfering by work, data were sampled through a multi-layers network which synthesize the field-bus and Ethernet and center on programmable logic controller.

为了排除人为干扰、提高可靠性，采集数据以可编程逻辑控制器为核心，通过现场总线和以太网的多层网络传送至数据库中。

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The advantage of GIS technology in combining multi sources geoscience information is used in the important aspect of regional geological survey field spatial data collection.

利用GIS技术综合多源地学空间信息，应用于区域地质调查的重要方面——野外空间数据采集。

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