A simple two tier database-only approach is not likely to achieve the performance requirements outlined above.
一个只有两层的简单数据库方案不太可能达到上述性能需求。
If you then had a scripting language running in-process with the Web server, such as PHP, that connected to a database, this would be described as two tier.
如果用Web服务器运行某种脚本语言(比如php)，从而连接数据库，那么这可以看作两层。
This approach overcomes the security problems of deploying two-tier systems over the WAN by replicating a native client to a remote user.
通过将一个原生客户端复制给一个远程用户，这种途径克服了通过WAN部署两层系统的安全性问题。
We choose to implement a two-tier approach for a variety of reasons, all of which are discussed in a previous article referenced in Resources.
出于各种原因，我们选择实现两层方法，在参考资料中所引用的前一篇文章中，讨论了所有这些原因。
A product, set up for small - and medium-sized businesses, works well within a two-tier architecture.
现有针对中小型业务设置的一款产品，该产品在两层架构中工作得很好。
This two-tier architecture is called Asymmetric Massively Parallel Processing (AMPP), as shown in Figure 1.
这种两层式架构被称为非对称的大规模并行处理(AMPP)，如图1所示。
Still, the fake cloud approach does not address the scalability issues inherent in a two-tier system.
但是，伪造云途径不能解决两层系统固有的可伸缩性问题。
The system is designed as a two-tier system with an app tier running the J2EE application and a load-balancer tier.
这个系统设计成两层的系统，运行J2EE应用程序的应用程序层和负载平衡器层。
A notionally two-tier Europe could see its meetings preceded by those of a 16-strong inner council that would compete for primacy, perhaps successfully.
一个抽象，双重的欧洲的会议是有16个强势的内部理事会进行的，他们为追求卓越，彼此竞争也许会成功。
This two-tier labour market divides workers into a privileged groupcocooned from the reality of recession and the disadvantaged ontemporary contracts, in unemployment or in illegal jobs.
这种二重的劳动力市场使得一部分人在市场衰退下得以全身而退，而另一部分主要由临时工，失业人员和非法劳工构成的人却步履艰难。
And two-tier systems perform poorly when a fat client must connect to a database over the WAN.
当胖客户机必须通过WAN连接到数据库时，两层系统的性能较差。
Two-tier distributors do well in these markets for several reasons.
在这些市场双层经销商进展情况良好存有关键因素。
The deal establishes a two-tier royalty payment system for companies - such as the popular service offered by Pandora - that broadcast music over the Internet.
这个协议为在网络上播放音乐的公司——比如很受欢迎的“潘多拉”——规划了一个双层版权费支付系统。
But are two-tier shareholding structures a good idea?
然而双重持股结构真是个好方法吗？
The two-tier system for managing air traffic was agreed to by international aviation authorities and Caribbean states, and flights have resumed.
这一两级分类航管系统得到国际民航部门及加勒比海国家的同意，目前航道已经开通，救灾航班陆续入港。
Spain's two-tier Labour system is inefficient as well as unfair.
西班牙劳动力体系的双重制度毫无效率和公平可言。
John McCain, the nominee, advocated a two-tier system.
竞选人约翰·麦凯恩倡导两级制度。
Although unemployment is low, rapid job losses among Japan's army of temporary workers are exposing the unfairness of a two-tier Labour market and straining an egalitarian society.
尽管日本的失业率较低，但其临时劳动力大军中却有越来越多人失去了工作，暴露出其两级劳动力市场的不公平性，也让这个平均主义社会不堪重负。
Before answering that, consider also the shift from three-tier messaging systems to two-tier systems.
在回答上述问题之前，我们还要首先考虑从三层消息传递系统到两层消息传递系统的转换。
Egypt has, in effect, accepted that it runs a two-tier education system.
事实上，埃及已接受双重教育体系。
Later in this article, you'll see how to use this approach to automate the deployment of a two-tier J2EE application in the IBM Cloud.
在本文中，您会看到如何使用这种方式自动地在IBM Cloud中部署一个两层的J2EE应用程序。
You saw a bit of XML code to automate the deployment of a two-tier J2EE application in the IBM Cloud; the code details action creation, hooking actions to events, and event handling.
您看到了在IBMCloud中自动部署两层的J2EE应用程序的一些XML代码；这些代码说明了如何创建动作、把动作与事件关联起来和处理事件。
Then there was another form of two-tier architecture in which not only the UI but even the business logic resided on the client tier.
此后又出现了另外一种2级结构，在这种结构中，不只是用户接口（UI），连业务逻辑也被放到了客户端一级。
One, while we choose to implement a two-tier approach for production purposes, we did test Portal Enable on single-tier system and it worked flawlessly.
第一件，虽然出于生产目的，我们选择实现两层方法，但我们在单层系统上测试了PortalEnable，它运行良好。
Two-tier thick client applications are easy to develop, but any software upgrade because of changes in user interface or business logic has to be rolled out for all the clients.
尽管2级“胖客户端”应用的开发很简单，但是任何用户接口或者业务逻辑的改变所导致的软件升级都需要在所有客户端上进行。
Using a two-tier model meant we could continue running Red Hat Linux 8.0 on our main Portal server plus gain the benefits of using a directory service for authentication.
使用双层模型使我们能继续在我们的主Portal服务器上运行RedHatLinux 8.0，还得到了使用目录服务进行认证的好处。
Its awkward title refers to Mr Kahneman’s two-tier model of cognition: “System 1” is quick, intuitive and responsible for the quirks and mistakes described above (and many others).
这本书不甚文艺的书名，实际上是指卡尼曼先生的双重认知模型：“一号系统”是快速的直觉思维，是前面描述的（以及其他更多的）思维错误的根源。
The logging support, breakpointer, profiler, and testing frameworks are all tailored for Web-based applications and enabled for two-tier operation.
日志支持、breakpointer、剖析器(profiler)和测试框架都针对基于Web的应用程序进行了修剪并针对两层操作而被启用。
The logging support, breakpointer, profiler, and testing frameworks are all tailored for Web-based applications and enabled for two-tier operation.
日志支持、breakpointer、剖析器(profiler)和测试框架都针对基于Web的应用程序进行了修剪并针对两层操作而被启用。
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