Typically, though, a mission-critical application does not rely on public data sources because of concerns about availability and data validity.

但是，考虑到数据的可用性和有效性，任务关键型应用程序一般都不依赖于公共数据源。

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For example, an agency that provides food will need to know about availability of transport and fuel, road conditions, etc.

例如，一个提供食品的机构要了解交通、燃料和路况等。

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For example, an agency that provides food will need to know about availability of transport and fuel, road conditions, etc.

例如，一个提供食品的机构要了解交通、燃料和路况等。

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