It is for these companies that I would recommend one web front-end server and one database server.
对于这些公司公司我推荐一个web前端(web front - end)服务器和一个数据库服务器。
Thirty concurrent clients ran on a smaller front-end server, and submitted transactions to a federated server on a separate machine.
个并发客户机在一个较小的前端服务器上运行，并将事务提交给在另一台机器上的联邦服务器。
The following figure shows how context switching begins to level off on a two-processor front-end server as processor usage increases.
下图显示了双处理器前端服务器的上下文切换是如何随着处理器使用的增加而渐趋平稳的。
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