Gwinnett is one of the counties in metro Atlanta’s five-county core region.

格温内特是亚特兰大都会区五县核心地区的县之一。

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As you know from "Introducing Metro," the reference implementations of the JAXB 2.x data-binding and JAX-WS 2.x Web services standards are at the core of the Metro Web services framework.

正如“Metro简介”所述，JAXB 2 . x数据绑定的参考实现和JAX - WS 2 . x网络服务规范是Metro网络服务框架的核心。

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Metro signal system is core component to ensure trains efficient and safe operation.

地铁信号系统，是保证列车高效、安全运行的核心部件。

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DB's role in the sale by Metro, a big retailer, of its non-core assets, which galvanised German retailing, and in the sale of Hapag-Lloyd, a travel agency, which did the same for the tourism business.

ECONOMIST: German banking investments