计量与统计服务通过证书的内部使用将合同中详细说明的请求者与提供者之间的关系存储起来。
The meter and accounting service stores the relationship between the requestor and provider as detailed in the contract buy the internal use of certificates.
合同涵盖了服务惯例的所有属性以及提供者和请求者如何对其进行使用，它的订立为计量服务的使用建立了基础。
The contract lays the foundation for metering the services to be used, by covering all the attributes of the service customs and how they shall be employed by provider and requestor.
一种典型的情况是，提供者定期使用计量服务来生成记账数据对签过合同的请求者进行收费。
Typically, on a periodic basis, the provider uses the meter service to generate billing data in order to charge the contracted requestors.
应用推荐