空闲的资源，加上J2EE平台的崛起，迎来了云计算的概念：应用服务虚拟化。
The concept of under-utilized resources, together with the rise of J2EE platform, gave rise to the precursor of cloud computing: application server virtualization.
ServiceVM——通过一种简单的方式为云提供新的基础设施和应用服务。
Service VM - to provide an easy way to provision new infrastructure and application services for the cloud.
CloudFoundry是业界首个开放平台即服务产品，支持多种框架、应用服务与云基础设施。
Cloud Foundry is the industry's first open platform as a service, supporting a choice of frameworks, application services and cloud infrastructures.
Derek：CloudFoundry是VMware的一款OpenPaaS，它支持多种框架、语言、云平台及应用服务。
Derek: cloud Foundry is VMware's OpenPaas, with support for multiple frameworks and languages, and a choice of cloud platform and application services.
该云提供商提供应用服务器服务，但您可能完全不知道接收供应商的哪个服务器，除非您与该提供商签署了具体的协议。
The cloud provider produces the application server service, but you might be completely unaware of what vendor's server you are receiving unless you negotiated a specific agreement with the provider.
服务层，提供云服务，如IaaS提供基础设施服务，PaaS提供中间件服务，SaaS提供应用服务。
Service Layer providing cloud services. IaaS is considered a service providing infrastructure along with PaaS offering middleware and SaaS providing applications.
服务层，提供云服务，如IaaS提供基础设施服务，PaaS提供中间件服务，SaaS提供应用服务。
Service Layer providing cloud services. IaaS is considered a service providing infrastructure along with PaaS offering middleware and SaaS providing applications.
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