Each message is published, along with an asynchronous callback listener, to a message bus residing on the business tier.

每条消息连同异步回调侦听程序一起被发布到驻留在业务层的消息总线。

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To manage state on the business tier, we use stateful session EJB components.

要在业务层上管理状态，我们使用有状态会话ejb组件。

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The framework resides in the business tier of an enterprise application system.

框架驻留在企业级应用程序系统的业务层中。

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Its not exactly a secret that Nokia has a number of challenges, including a struggling mobile infrastructure joint venture and transitioning its device business toward smartphones while its core low-tier mobile phone business is under attack thanks to ZTE, Huawei and others.

FORBES: Facing Mobile Woes, HP Needs Nokia

While such specialist degrees are currently only offered by smaller, second-tier business schools, the larger players are watching their success with interest.

CNN: Degrees go for specialist redesign

In the run-up to the 2008 financial meltdown, many top-tier business schools devoted themselves to pumping out a stream of Wall Street recruits.

FORBES: What the Future of Business Education Looks Like