As a type of one of realizing technologies of SLB, Virtual server is a high-performance, high available, high scalable cluster of servers which appears to be only one server to an outside client.

作为服务器负载均衡的一种实现技术，虚拟服务器技术把多个服务器组成的高性能的、高可扩展性的、高可用性的服务器集群，而整个服务器集群再客户眼里求如同一个服务器一样。

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Year-to-date, SLB has had a total return of -0.5%, but in the last three months the stock has been up about 8.5%.

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Schlumberger ( SLB - news - people ) to analyze a Turkish well it cost 13 times what it would have in Texas.

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