It is important to note which models have been established—for example, server billing at US$0.10 per hour rather than large upfront procurement costs.
重要的是要注意实现了哪种模式，例如，服务器以每小时 US$0.10 计费，而非以大量的前端采购成本计费。
The billing for most of these elements is on a per-month basis, where each server is decommissioned and returned within a few minutes as initially provisioned.
这些元素大多是按照每月计费，每台服务器在几分钟之内就按初始配置释放并返回。
The billing service establishes the connection to the web server through a PHP interface and gets the record document from the Usage record (UR) Repository.
这个账单服务通过一个PHP接口连接web服务器，从使用量记录(UR)存储库获取记录文档。
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